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Web-PHP

PHP / apache_getenv — DevDocs

apache_getenv

(PHP 4 >= 4.3.0, PHP 5, PHP 7, PHP 8)

apache_getenv — Get an Apache subprocess_env variable

Description 

apache_getenv(string $variable, bool $walk_to_top = false): string|false

Retrieve an Apache environment variable specified by variable .

Parameters

variable

The Apache environment variable

walk_to_top

Whether to get the top-level variable available to all Apache layers.

Return Values

The value of the Apache environment variable on success, or false on failure

Examples

Example #1 apache_getenv() example

The example above shows how to retrieve the value of the Apache environment variable SERVER_ADDR . 

<?php
$ret = apache_getenv("SERVER_ADDR");
echo $ret;
?>

The above example will output something similar to: 

42.24.42.240

See Also

  • apache_setenv() - Set an Apache subprocess_env variable
  • getenv() - Gets the value of an environment variable
  • Superglobals

PHP / apache_lookup_uri — DevDocs

apache_lookup_uri

(PHP 4, PHP 5, PHP 7, PHP 8)

apache_lookup_uri — Perform a partial request for the specified URI and return all info about it

Description 

apache_lookup_uri(string $filename): object|false

This performs a partial request for a URI. It goes just far enough to obtain all the important information about the given resource.

This function is supported when PHP is installed as an Apache module webserver.

Parameters

filename

The filename (URI) that's being requested.

Return Values

An object of related URI information. The properties of this object are:

  • status
  • the_request
  • status_line
  • method
  • content_type
  • handler
  • uri
  • filename
  • path_info
  • args
  • boundary
  • no_cache
  • no_local_copy
  • allowed
  • send_bodyct
  • bytes_sent
  • byterange
  • clength
  • unparsed_uri
  • mtime
  • request_time

Returns false on failure.

Examples

Example #1 apache_lookup_uri() example 

<?php
$info = apache_lookup_uri('index.php?var=value');
print_r($info);

if (file_exists($info->filename)) {
    echo 'file exists!';
}
?>

The above example will output something similar to: 

stdClass Object
(
    [status] => 200
    [the_request] => GET /dir/file.php HTTP/1.1
    [method] => GET
    [mtime] => 0
    [clength] => 0
    [chunked] => 0
    [content_type] => application/x-httpd-php
    [no_cache] => 0
    [no_local_copy] => 1
    [unparsed_uri] => /dir/index.php?var=value
    [uri] => /dir/index.php
    [filename] => /home/htdocs/dir/index.php
    [args] => var=value
    [allowed] => 0
    [sent_bodyct] => 0
    [bytes_sent] => 0
    [request_time] => 1074282764
)
file exists!
Read article

PHP / apache_note — DevDocs

apache_note

(PHP 4, PHP 5, PHP 7, PHP 8)

apache_note — Get and set apache request notes

Description 

apache_note(string $note_name, ?string $note_value = null): string|false

This function is a wrapper for Apache's table_get and table_set . It edits the table of notes that exists during a request. The table's purpose is to allow Apache modules to communicate.

The main use for apache_note() is to pass information from one module to another within the same request.

Parameters

note_name

The name of the note.

note_value

The value of the note.

Return Values

If note_value is omitted or null , it returns the current value of note note_name . Otherwise, it sets the value of note note_name to note_value and returns the previous value of note note_name . If the note cannot be retrieved, false is returned.

Changelog

Version Description
8.0.0 note_value is nullable now.

Examples

Example #1 Passing information between PHP and Perl 

<?php

apache_note('name', 'Fredrik Ekengren');

// Call perl script
virtual("/perl/some_script.pl");

$result = apache_note("resultdata");
?>
# Get Apache request object
my $r = Apache->request()->main();

# Get passed data
my $name = $r->notes('name');

# some processing

# Pass result back to PHP
$r->notes('resultdata', $result);

Example #2 Logging values in access.log 

<?php

apache_note('sessionID', session_id());

?>
# "%{sessionID}n" can be used in the LogFormat directive

See Also

  • virtual() - Perform an Apache sub-request
Read article

PHP / apache_request_headers — DevDocs

apache_request_headers

(PHP 4 >= 4.3.0, PHP 5, PHP 7, PHP 8)

apache_request_headers — Fetch all HTTP request headers

Description 

apache_request_headers(): array

Fetches all HTTP request headers from the current request. Works in the Apache, FastCGI, CLI, and FPM webservers.

Parameters

This function has no parameters.

Return Values

An associative array of all the HTTP headers in the current request, or false on failure.

Changelog

Version Description
7.3.0 This function became available in the FPM SAPI.

Examples

Example #1 apache_request_headers() example 

<?php
$headers = apache_request_headers();

foreach ($headers as $header => $value) {
    echo "$header: $value <br />\n";
}
?>

The above example will output something similar to: 

Accept: */*
Accept-Language: en-us
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0
Host: www.example.com
Connection: Keep-Alive

Notes

Note :

You can also get at the value of the common CGI variables by reading them from the environment, which works whether or not you are using PHP as an Apache module. Use phpinfo() to see a list of all of the available environment variables.

See Also

  • apache_response_headers() - Fetch all HTTP response headers
Read article

PHP / apache_response_headers — DevDocs

apache_response_headers

(PHP 4 >= 4.3.0, PHP 5, PHP 7, PHP 8)

apache_response_headers — Fetch all HTTP response headers

Description 

apache_response_headers(): array|false

Fetch all HTTP response headers. Works in the Apache, FastCGI, CLI, and FPM webservers.

Parameters

This function has no parameters.

Return Values

An array of all Apache response headers on success or false on failure.

Examples

Example #1 apache_response_headers() example 

<?php
print_r(apache_response_headers());
?>

The above example will output something similar to: 

Array
(
    [Accept-Ranges] => bytes
    [X-Powered-By] => PHP/4.3.8
)

See Also

  • apache_request_headers() - Fetch all HTTP request headers
  • headers_sent() - Checks if or where headers have been sent
  • headers_list() - Returns a list of response headers sent (or ready to send)
Read article

PHP / apache_setenv — DevDocs

apache_setenv

(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)

apache_setenv — Set an Apache subprocess_env variable

Description 

apache_setenv(string $variable, string $value, bool $walk_to_top = false): bool

apache_setenv() sets the value of the Apache environment variable specified by variable .

Note :

When setting an Apache environment variable, the corresponding $_SERVER variable is not changed.

Parameters

variable

The environment variable that's being set.

value

The new variable value.

walk_to_top

Whether to set the top-level variable available to all Apache layers.

Return Values

Returns true on success or false on failure.

Examples

Example #1 Setting an Apache environment variable using apache_setenv() 

<?php
apache_setenv("EXAMPLE_VAR", "Example Value");
?>

Notes

Note :

apache_setenv() can be paired up with apache_getenv() across separate pages or for setting variables to pass to Server Side Includes (.shtml) that have been included in PHP scripts.

See Also

  • apache_getenv() - Get an Apache subprocess_env variable
Read article