<span>1. </span>Integer    (整数)
<span>2. </span>Float      (浮点数)
<span>3. </span>String     (字符串)
<span>4. </span>Boolean    (布尔值)
<span>5. </span>Array      (数组)
<span>6. </span>Object     (对象)

<span><?php </span><span>$a</span>=<span>6.66666</span>;
<span>$b</span>=(integer)<span>$a</span>;
<span>echo</span><span>$b</span>;</span>

echo <span>floor</span>(<span>4.3</span>);   <span>// 输出4 </span>
echo <span>floor</span>(<span>9.999</span>); <span>// 输出9</span>

echo <span>ceil</span>(<span>4.3</span>);    <span>// 输出5 </span>
echo <span>ceil</span>(<span>9.999</span>);  <span>// 输出10</span>

echo <span>round</span>(<span>3.4</span>);         <span>// 输出3 </span>
echo <span>round</span>(<span>3.5</span>);         <span>// 输出4 </span>
echo <span>round</span>(<span>3.6</span>);         <span>// 输出4 </span>
echo <span>round</span>(<span>3.6</span>, <span>0</span>);      <span>// 输出4 </span>
echo <span>round</span>(<span>1.95583</span>, <span>2</span>);  <span>// 输出1.96 </span>
echo <span>round</span>(<span>1241757</span>, -<span>3</span>); <span>// 输出1242000 </span>
echo <span>round</span>(<span>5.045</span>, <span>2</span>);    <span>// 输出5.04 </span>
echo <span>round</span>(<span>5.055</span>, <span>2</span>);    <span>// 输出5.06</span>

             $("#src-btn").click(function() { 
                
                var domainname = $(''#domain-name'').val();
                
                $.ajax({
                    url: "domain-search.PHP",type: ''post'',data: ''Domain ''+domainname,success: function(data)
                    {
                        output = ''<div>''+data.text+''</div>'';
        
                        $("#result").hide().html(output).slideDown();           
                    }
                });
            });
            
            $("#domain-search input").keyup(function() { 
                $("#domain-search input").css(''border-color'',''''); 
                $("#result").slideUp();
            });

        $domainname = $_POST["domain-name"];
        if (isset($_POST["domain-name"])) {
            if ( gethostbyname($domainname) != $domainname ) {
                echo "<script>alert(''Found'')</script>";
            }
            else {
                echo "<script>alert(''Not found'')</script>";
            }
        } else {
            $output = json_encode(array(''type'' => ''error'',''text'' => ''Empty''));
            die($output);
        }

                    <div id="result"></div>
                    <form class="domain-search-form parsley-validate" data-animate="fadeInUp" data-delay=".5" method="post" id="domain-search" name="domain-search">
                        <input type="text" placeholder="Domain name" id="domain-name" name="domain-name" required>
                        <button class="src-btn" name="src-btn" id="src-btn"><i class="fa fa-search"></i></button>
                    </form>

$.ajax({
    url: "domain-search.php",type: ''post'',data: {''domain-name'':domainname},success: function(data)
    {
        output = ''<div>''+data.text+''</div>'';
        $("#result").hide().html(output).slideDown();           
    }
});

$test = [
    ''20'',''22'',''24'' => [
        ''25'',''26''
    ]
];
foreach ( $test as $key => $a ) {
    if ( is_array( $a ) ) {
        error_log(''Key: '' . $key);
        error_log( print_r( $a,true ) );
    } else {
        error_log( $a );
    }
}

let a = {};
let b = 2;
let c = 20;
a[c] = c;
a[b] = b;
let test = [2,3,5];
a[b] = test;
console.log(a);

let a = [];
let b = ''20'';
let c = ''22'';
a.push(c);
a.push(b);
let test = [''25'',''26''];
a.push({''24'': test});
console.log(a);

NGINX 和 PHP-FPM (7.4) 在 ubuntu 404ing 上通过 javascript 访问的 .php 文件

如何解决NGINX 和 PHP-FPM (7.4) 在 ubuntu 404ing 上通过 javascript 访问的 .php 文件

当我尝试在 Nginx 提供的网页上通过 ajax 调用运行 register.PHP 时，从上游读取响应标头时，我正在获取未知的主脚本。

即使文件存在于服务器上，也返回 404。我已经尝试了很多不同的方法来解决这个问题 2 天，但无济于事。我已经更改了权限、用户等，但我一直得到相同的结果。

我有一个 .html，其中有一个 .js 使用 ajax POST 到 .PHP，当我这样做时，我收到了那个错误。

这是我的服务器配置：

# Expires map
map $sent_http_content_type $expires {
    default                    off;
    text/html                  epoch;
    text/css                   7d;
    application/javascript     7d;
    ~image/                    7d;
    ~font/                     7d;
}

server {
   listen 80;
   server_name strend.app www.strend.app;

#   expires $expires;

   location / {
      root /usr/share/futuristt_websites/futuristt_websites/strend;
      index index.html index.htm;
      try_files $uri $uri/ =404;
   }

   error_page 500 502 503 504 /50x.html;
   location = /50x.html {
      root html;
   }

   location ~ \\.PHP$ {
      include snippets/fastcgi-PHP.conf;
      fastcgi_pass unix:/run/PHP/PHP7.4-fpm.sock;
   }
}

这是我的 www.conf：

; Start a new pool named ''www''.
; the variable $pool can be used in any directive and will be replaced by the
; pool name (''www'' here)
[www]

; Per pool prefix
; It only applies on the following directives:
; - ''access.log''
; - ''slowlog''
; - ''listen'' (unixsocket)
; - ''chroot''
; - ''chdir''
; - ''PHP_values''
; - ''PHP_admin_values''
; When not set,the global prefix (or /usr) applies instead.
; Note: This directive can also be relative to the global prefix.
; Default Value: none
;prefix = /path/to/pools/$pool

; Unix user/group of processes
; Note: The user is mandatory. If the group is not set,the default user''s group
;       will be used.
user = www-data
group = www-data

; The address on which to accept FastCGI requests.
; Valid Syntaxes are:
;   ''ip.add.re.ss:port''    - to listen on a TCP socket to a specific IPv4 address on
;                            a specific port;
;   ''[ip:6:addr:ess]:port'' - to listen on a TCP socket to a specific IPv6 address on
;                            a specific port;
;   ''port''                 - to listen on a TCP socket to all addresses
;                            (IPv6 and IPv4-mapped) on a specific port;
;   ''/path/to/unix/socket'' - to listen on a unix socket.
; Note: This value is mandatory.
listen = /run/PHP/PHP7.4-fpm.sock

; Set listen(2) backlog.
; Default Value: 511 (-1 on FreeBSD and OpenBSD)
;listen.backlog = 511

; Set permissions for unix socket,if one is used. In Linux,read/write
; permissions must be set in order to allow connections from a web server. Many
; BSD-derived systems allow connections regardless of permissions.
; Default Values: user and group are set as the running user
;                 mode is set to 0660
listen.owner = www-data
listen.group = www-data

;listen.mode = 0660
; When POSIX Access Control Lists are supported you can set them using
; these options,value is a comma separated list of user/group names.
; When set,listen.owner and listen.group are ignored
;listen.acl_users =
;listen.acl_groups =

; List of addresses (IPv4/IPv6) of FastCGI clients which are allowed to connect.
; Equivalent to the FCGI_WEB_SERVER_ADDRS environment variable in the original
; PHP FCGI (5.2.2+). Makes sense only with a tcp listening socket. Each address
; must be separated by a comma. If this value is left blank,connections will be
; accepted from any ip address.
; Default Value: any
;listen.allowed_clients = 127.0.0.1

; Specify the nice(2) priority to apply to the pool processes (only if set)
; The value can vary from -19 (highest priority) to 20 (lower priority)
; Note: - It will only work if the FPM master process is launched as root
;       - The pool processes will inherit the master process priority
;         unless it specified otherwise
; Default Value: no set
; process.priority = -19

; Set the process dumpable flag (PR_SET_DUMPABLE prctl) even if the process user
; or group is differrent than the master process user. It allows to create process
; core dump and ptrace the process for the pool user.
; Default Value: no
; process.dumpable = yes

; Choose how the process manager will control the number of child processes.
; Possible Values:
;   static  - a fixed number (pm.max_children) of child processes;
;   dynamic - the number of child processes are set dynamically based on the
;             following directives. With this process management,there will be
;             always at least 1 children.
;             pm.max_children      - the maximum number of children that can
;                                    be alive at the same time.
;             pm.start_servers     - the number of children created on startup.
;             pm.min_spare_servers - the minimum number of children in ''idle''
;                                    state (waiting to process). If the number
;                                    of ''idle'' processes is less than this
;                                    number then some children will be created.
;             pm.max_spare_servers - the maximum number of children in ''idle''
;                                    state (waiting to process). If the number
;                                    of ''idle'' processes is greater than this
;                                    number then some children will be killed.
;  ondemand - no children are created at startup. Children will be forked when
;             new requests will connect. The following parameter are used:
;             pm.max_children           - the maximum number of children that
;                                         can be alive at the same time.
;             pm.process_idle_timeout   - The number of seconds after which
;                                         an idle process will be killed.
; Note: This value is mandatory.
pm = dynamic

; The number of child processes to be created when pm is set to ''static'' and the
; maximum number of child processes when pm is set to ''dynamic'' or ''ondemand''.
; This value sets the limit on the number of simultaneous requests that will be
; served. Equivalent to the ApacheMaxClients directive with mpm_prefork.
; Equivalent to the PHP_FCGI_CHILDREN environment variable in the original PHP
; CGI. The below defaults are based on a server without much resources. Don''t
; forget to tweak pm.* to fit your needs.
; Note: Used when pm is set to ''static'',''dynamic'' or ''ondemand''
; Note: This value is mandatory.
pm.max_children = 5

; The number of child processes created on startup.
; Note: Used only when pm is set to ''dynamic''
; Default Value: (min_spare_servers + max_spare_servers) / 2
pm.start_servers = 2

; The desired minimum number of idle server processes.
; Note: Used only when pm is set to ''dynamic''
; Note: Mandatory when pm is set to ''dynamic''
pm.min_spare_servers = 1

; The desired maximum number of idle server processes.
; Note: Used only when pm is set to ''dynamic''
; Note: Mandatory when pm is set to ''dynamic''
pm.max_spare_servers = 3

; The number of seconds after which an idle process will be killed.
; Note: Used only when pm is set to ''ondemand''
; Default Value: 10s
;pm.process_idle_timeout = 10s;

; The number of requests each child process should execute before respawning.
; This can be useful to work around memory leaks in 3rd party libraries. For
; endless request processing specify ''0''. Equivalent to PHP_FCGI_MAX_REQUESTS.
; Default Value: 0
;pm.max_requests = 500

; The URI to view the FPM status page. If this value is not set,no URI will be
; recognized as a status page. It shows the following informations:
;   pool                 - the name of the pool;
;   process manager      - static,dynamic or ondemand;
;   start time           - the date and time FPM has started;
;   start since          - number of seconds since FPM has started;
;   accepted conn        - the number of request accepted by the pool;
;   listen queue         - the number of request in the queue of pending
;                          connections (see backlog in listen(2));
;   max listen queue     - the maximum number of requests in the queue
;                          of pending connections since FPM has started;
;   listen queue len     - the size of the socket queue of pending connections;
;   idle processes       - the number of idle processes;
;   active processes     - the number of active processes;
;   total processes      - the number of idle + active processes;
;   max active processes - the maximum number of active processes since FPM
;                          has started;
;   max children reached - number of times,the process limit has been reached,;                          when pm tries to start more children (works only for
;                          pm ''dynamic'' and ''ondemand'');
; Value are updated in real time.
; Example output:
;   pool:                 www
;   process manager:      static
;   start time:           01/Jul/2011:17:53:49 +0200
;   start since:          62636
;   accepted conn:        190460
;   listen queue:         0
;   max listen queue:     1
;   listen queue len:     42
;   idle processes:       4
;   active processes:     11
;   total processes:      15
;   max active processes: 12
;   max children reached: 0
;
; By default the status page output is formatted as text/plain. Passing either
; ''html'',''xml'' or ''json'' in the query string will return the corresponding
; output Syntax. Example:
;   http://www.foo.bar/status
;   http://www.foo.bar/status?json
;   http://www.foo.bar/status?html
;   http://www.foo.bar/status?xml
;
; By default the status page only outputs short status. Passing ''full'' in the
; query string will also return status for each pool process.
; Example:
;   http://www.foo.bar/status?full
;   http://www.foo.bar/status?json&full
;   http://www.foo.bar/status?html&full
;   http://www.foo.bar/status?xml&full
; The Full status returns for each process:
;   pid                  - the PID of the process;
;   state                - the state of the process (Idle,Running,...);
;   start time           - the date and time the process has started;
;   start since          - the number of seconds since the process has started;
;   requests             - the number of requests the process has served;
;   request duration     - the duration in µs of the requests;
;   request method       - the request method (GET,POST,...);
;   request URI          - the request URI with the query string;
;   content length       - the content length of the request (only with POST);
;   user                 - the user (PHP_AUTH_USER) (or ''-'' if not set);
;   script               - the main script called (or ''-'' if not set);
;   last request cpu     - the %cpu the last request consumed
;                          it''s always 0 if the process is not in Idle state
;                          because cpu calculation is done when the request
;                          processing has terminated;
;   last request memory  - the max amount of memory the last request consumed
;                          it''s always 0 if the process is not in Idle state
;                          because memory calculation is done when the request
;                          processing has terminated;
; If the process is in Idle state,then informations are related to the
; last request the process has served. Otherwise informations are related to
; the current request being served.
; Example output:
;   ************************
;   pid:                  31330
;   state:                Running
;   start time:           01/Jul/2011:17:53:49 +0200
;   start since:          63087
;   requests:             12808
;   request duration:     1250261
;   request method:       GET
;   request URI:          /test_mem.PHP?N=10000
;   content length:       0
;   user:                 -
;   script:               /home/fat/web/docs/PHP/test_mem.PHP
;   last request cpu:     0.00
;   last request memory:  0
;
; Note: There is a real-time FPM status monitoring sample web page available
;       It''s available in: /usr/share/PHP/7.4/fpm/status.html
;
; Note: The value must start with a leading slash (/). The value can be
;       anything,but it may not be a good idea to use the .PHP extension or it
;       may conflict with a real PHP file.
; Default Value: not set
;pm.status_path = /status

; The ping URI to call the monitoring page of FPM. If this value is not set,no
; URI will be recognized as a ping page. This Could be used to test from outside
; that FPM is alive and responding,or to
; - create a graph of FPM availability (rrd or such);
; - remove a server from a group if it is not responding (load balancing);
; - trigger alerts for the operating team (24/7).
; Note: The value must start with a leading slash (/). The value can be
;       anything,but it may not be a good idea to use the .PHP extension or it
;       may conflict with a real PHP file.
; Default Value: not set
;ping.path = /ping

; This directive may be used to customize the response of a ping request. The
; response is formatted as text/plain with a 200 response code.
; Default Value: pong
;ping.response = pong

; The access log file
; Default: not set
access.log = /var/log/$pool.access.log

; The access log format.
; The following Syntax is allowed
;  %%: the ''%'' character
;  %C: %cpu used by the request
;      it can accept the following format:
;      - %{user}C for user cpu only
;      - %{system}C for system cpu only
;      - %{total}C  for user + system cpu (default)
;  %d: time taken to serve the request
;      it can accept the following format:
;      - %{seconds}d (default)
;      - %{miliseconds}d
;      - %{mili}d
;      - %{microseconds}d
;      - %{micro}d
;  %e: an environment variable (same as $_ENV or $_SERVER)
;      it must be associated with embraces to specify the name of the env
;      variable. Some exemples:
;      - server specifics like: %{REQUEST_METHOD}e or %{SERVER_PROTOCOL}e
;      - HTTP headers like: %{HTTP_HOST}e or %{HTTP_USER_AGENT}e
;  %f: script filename
;  %l: content-length of the request (for POST request only)
;  %m: request method
;  %M: peak of memory allocated by PHP
;      it can accept the following format:
;      - %{bytes}M (default)
;      - %{kilobytes}M
;      - %{kilo}M
;      - %{megabytes}M
;      - %{mega}M
;  %n: pool name
;  %o: output header
;      it must be associated with embraces to specify the name of the header:
;      - %{Content-Type}o
;      - %{X-Powered-By}o
;      - %{Transfert-Encoding}o
;      - ....
;  %p: PID of the child that serviced the request
;  %P: PID of the parent of the child that serviced the request
;  %q: the query string
;  %Q: the ''?'' character if query string exists
;  %r: the request URI (without the query string,see %q and %Q)
;  %r: remote IP address
;  %s: status (response code)
;  %t: server time the request was received
;      it can accept a strftime(3) format:
;      %d/%b/%Y:%H:%M:%s %z (default)
;      The strftime(3) format must be encapsuled in a %{<strftime_format>}t tag
;      e.g. for a ISO8601 formatted timestring,use: %{%Y-%m-%dT%H:%M:%s%z}t
;  %T: time the log has been written (the request has finished)
;      it can accept a strftime(3) format:
;      %d/%b/%Y:%H:%M:%s %z (default)
;      The strftime(3) format must be encapsuled in a %{<strftime_format>}t tag
;      e.g. for a ISO8601 formatted timestring,use: %{%Y-%m-%dT%H:%M:%s%z}t
;  %u: remote user
;
; Default: "%r - %u %t \\"%m %r\\" %s"
;access.format = "%r - %u %t \\"%m %r%Q%q\\" %s %f %{mili}d %{kilo}M %C%%"

; The log file for slow requests
; Default Value: not set
; Note: slowlog is mandatory if request_slowlog_timeout is set
;slowlog = log/$pool.log.slow

; The timeout for serving a single request after which a PHP backtrace will be
; dumped to the ''slowlog'' file. A value of ''0s'' means ''off''.
; Available units: s(econds)(default),m(inutes),h(ours),or d(ays)
; Default Value: 0
;request_slowlog_timeout = 0

; Depth of slow log stack trace.
; Default Value: 20
;request_slowlog_trace_depth = 20

; The timeout for serving a single request after which the worker process will
; be killed. This option should be used when the ''max_execution_time'' ini option
; does not stop script execution for some reason. A value of ''0'' means ''off''.
; Available units: s(econds)(default),or d(ays)
; Default Value: 0
;request_terminate_timeout = 0

; The timeout set by ''request_terminate_timeout'' ini option is not engaged after
; application calls ''fastcgi_finish_request'' or when application has finished and
; shutdown functions are being called (registered via register_shutdown_function).
; This option will enable timeout limit to be applied unconditionally
; even in such cases.
; Default Value: no
;request_terminate_timeout_track_finished = no

; Set open file descriptor rlimit.
; Default Value: system defined value
;rlimit_files = 1024

; Set max core size rlimit.
; Possible Values: ''unlimited'' or an integer greater or equal to 0
; Default Value: system defined value
;rlimit_core = 0

; Chroot to this directory at the start. This value must be defined as an
; absolute path. When this value is not set,chroot is not used.
; Note: you can prefix with ''$prefix'' to chroot to the pool prefix or one
; of its subdirectories. If the pool prefix is not set,the global prefix
; will be used instead.
; Note: chrooting is a great security feature and should be used whenever
;       possible. However,all PHP paths will be relative to the chroot
;       (error_log,sessions.save_path,...).
; Default Value: not set
;chroot =

; Chdir to this directory at the start.
; Note: relative path can be used.
; Default Value: current directory or / when chroot
;chdir = /var/www

; Redirect worker stdout and stderr into main error log. If not set,stdout and
; stderr will be redirected to /dev/null according to FastCGI specs.
; Note: on highloaded environement,this can cause some delay in the page
; process time (several ms).
; Default Value: no
;catch_workers_output = yes

; Decorate worker output with prefix and suffix containing information about
; the child that writes to the log and if stdout or stderr is used as well as
; log level and time. This options is used only if catch_workers_output is yes.
; Settings to "no" will output data as written to the stdout or stderr.
; Default value: yes
;decorate_workers_output = no

; Clear environment in FPM workers
; Prevents arbitrary environment variables from reaching FPM worker processes
; by clearing the environment in workers before env vars specified in this
; pool configuration are added.
; Setting to "no" will make all environment variables available to PHP code
; via getenv(),$_ENV and $_SERVER.
; Default Value: yes
;clear_env = no

; Limits the extensions of the main script FPM will allow to parse. This can
; prevent configuration mistakes on the web server side. You should only limit
; FPM to .PHP extensions to prevent malicIoUs users to use other extensions to
; execute PHP code.
; Note: set an empty value to allow all extensions.
; Default Value: .PHP
;security.limit_extensions = .PHP .PHP3 .PHP4 .PHP5 .PHP7

; Pass environment variables like LD_LIBRARY_PATH. All $VARIABLEs are taken from
; the current environment.
; Default Value: clean env
;env[HOSTNAME] = $HOSTNAME
;env[PATH] = /usr/local/bin:/usr/bin:/bin
;env[TMP] = /tmp
;env[TMPDIR] = /tmp
;env[TEMP] = /tmp

; Additional PHP.ini defines,specific to this pool of workers. These settings
; overwrite the values prevIoUsly defined in the PHP.ini. The directives are the
; same as the PHP SAPI:
;   PHP_value/PHP_flag             - you can set classic ini defines which can
;                                    be overwritten from PHP call ''ini_set''.
;   PHP_admin_value/PHP_admin_flag - these directives won''t be overwritten by
;                                     PHP call ''ini_set''
; For PHP_*flag,valid values are on,off,1,true,false,yes or no.

; Defining ''extension'' will load the corresponding shared extension from
; extension_dir. Defining ''disable_functions'' or ''disable_classes'' will not
; overwrite prevIoUsly defined PHP.ini values,but will append the new value
; instead.

; Note: path INI options can be relative and will be expanded with the prefix
; (pool,global or /usr)

; Default Value: nothing is defined by default except the values in PHP.ini and
;                specified at startup with the -d argument
;PHP_admin_value[sendmail_path] = /usr/sbin/sendmail -t -i -f www@my.domain.com
;PHP_flag[display_errors] = off
;PHP_admin_value[error_log] = /var/log/fpm-PHP.www.log
;PHP_admin_flag[log_errors] = on
;PHP_admin_value[memory_limit] = 32M

这是我的 fastcgi-PHP.conf：

fastcgi_connect_timeout 60;
fastcgi_send_timeout 180;
fastcgi_read_timeout 180;
fastcgi_buffer_size 512k;
fastcgi_buffers 512 16k;
fastcgi_busy_buffers_size 1m;
fastcgi_temp_file_write_size 4m;
fastcgi_max_temp_file_size 4m;
fastcgi_intercept_errors off;

fastcgi_param SCRIPT_FILENAME   $document_root$fastcgi_script_name;
fastcgi_param PATH_INFO         $fastcgi_path_info;
fastcgi_param PATH_TRANSLATED   $document_root$fastcgi_path_info;
fastcgi_param QUERY_STRING      $query_string;
fastcgi_param REQUEST_METHOD    $request_method;
fastcgi_param CONTENT_TYPE      $content_type;
fastcgi_param CONTENT_LENGTH    $content_length;
fastcgi_param SCRIPT_NAME       $fastcgi_script_name;
fastcgi_param REQUEST_URI       $request_uri;
fastcgi_param DOCUMENT_URI      $document_uri;
fastcgi_param DOCUMENT_ROOT     $document_root;
fastcgi_param SERVER_PROTOCOL   $server_protocol;
fastcgi_param REQUEST_SCHEME    $scheme;
fastcgi_param HTTPS             $https if_not_empty;
fastcgi_param HTTP_PROXY        "";
fastcgi_param GATEWAY_INTERFACE CGI/1.1;
fastcgi_param SERVER_SOFTWARE   Nginx/$Nginx_version;
fastcgi_param REMOTE_ADDR       $remote_addr;
fastcgi_param REMOTE_PORT       $remote_port;
fastcgi_param SERVER_ADDR       $server_addr;
fastcgi_param SERVER_PORT       $server_port;
fastcgi_param SERVER_NAME       $server_name;
fastcgi_param REDIRECT_STATUS   200;

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