<?php
/**
* Misc WordPress Administration API.
*
* @package WordPress
* @subpackage Administration
*/
/**
* Returns whether the server is running Apache with the mod_rewrite module loaded.
*
* @since 2.0.0
*
* @return bool Whether the server is running Apache with the mod_rewrite module loaded.
*/
function got_mod_rewrite() {
$got_rewrite = apache_mod_loaded( 'mod_rewrite', true );
/**
* Filters whether Apache and mod_rewrite are present.
*
* This filter was previously used to force URL rewriting for other servers,
* like nginx. Use the {@see 'got_url_rewrite'} filter in got_url_rewrite() instead.
*
* @since 2.5.0
*
* @see got_url_rewrite()
*
* @param bool $got_rewrite Whether Apache and mod_rewrite are present.
*/
return apply_filters( 'got_rewrite', $got_rewrite );
}
/**
* Returns whether the server supports URL rewriting.
*
* Detects Apache's mod_rewrite, IIS 7.0+ permalink support, and nginx.
*
* @since 3.7.0
*
* @global bool $is_nginx
*
* @return bool Whether the server supports URL rewriting.
*/
function got_url_rewrite() {
$got_url_rewrite = ( got_mod_rewrite() || $GLOBALS['is_nginx'] || iis7_supports_permalinks() );
/**
* Filters whether URL rewriting is available.
*
* @since 3.7.0
*
* @param bool $got_url_rewrite Whether URL rewriting is available.
*/
return apply_filters( 'got_url_rewrite', $got_url_rewrite );
}
/**
* Extracts strings from between the BEGIN and END markers in the .htaccess file.
*
* @since 1.5.0
*
* @param string $filename Filename to extract the strings from.
* @param string $marker The marker to extract the strings from.
* @return array An array of strings from a file (.htaccess) from between BEGIN and END markers.
*/
function extract_from_markers( $filename, $marker ) {
$result = array();
if ( ! file_exists( $filename ) ) {
return $result;
}
$markerdata = explode( "\n", implode( '', file( $filename ) ) );
$state = false;
foreach ( $markerdata as $markerline ) {
if ( false !== strpos( $markerline, '# END ' . $marker ) ) {
$state = false;
}
if ( $state ) {
if ( '#' === substr( $markerline, 0, 1 ) ) {
continue;
}
$result[] = $markerline;
}
if ( false !== strpos( $markerline, '# BEGIN ' . $marker ) ) {
$state = true;
}
}
return $result;
}
/**
* Inserts an array of strings into a file (.htaccess), placing it between
* BEGIN and END markers.
*
* Replaces existing marked info. Retains surrounding
* data. Creates file if none exists.
*
* @since 1.5.0
*
* @param string $filename Filename to alter.
* @param string $marker The marker to alter.
* @param array|string $insertion The new content to insert.
* @return bool True on write success, false on failure.
*/
function insert_with_markers( $filename, $marker, $insertion ) {
if ( ! file_exists( $filename ) ) {
if (
| 