<?php
/**
* Class ActionScheduler_Compatibility
*/
class ActionScheduler_Compatibility {
/**
* Converts a shorthand byte value to an integer byte value.
*
* Wrapper for wp_convert_hr_to_bytes(), moved to load.php in WordPress 4.6 from media.php
*
* @link https://secure.php.net/manual/en/function.ini-get.php
* @link https://secure.php.net/manual/en/faq.using.php#faq.using.shorthandbytes
*
* @param string $value A (PHP ini) byte value, either shorthand or ordinary.
* @return int An integer byte value.
*/
public static function convert_hr_to_bytes( $value ) {
if ( function_exists( 'wp_convert_hr_to_bytes' ) ) {
return wp_convert_hr_to_bytes( $value );
}
$value = strtolower( trim( $value ) );
$bytes = (int) $value;
if ( false !== strpos( $value, 'g' ) ) {
$bytes *= GB_IN_BYTES;
} elseif ( false !== strpos( $value, 'm' ) ) {
$bytes *= MB_IN_BYTES;
} elseif ( false !== strpos( $value, 'k' ) ) {
$bytes *= KB_IN_BYTES;
}
// Deal with large (float) values which run into the maximum integer size.
return min( $bytes, PHP_INT_MAX );
}
/**
* Attempts to raise the PHP memory limit for memory intensive processes.
*
* Only allows raising the existing limit and prevents lowering it.
*
* Wrapper for wp_raise_memory_limit(), added in WordPress v4.6.0
*
* @return bool|int|string The limit that was set or false on failure.
*/
public static function raise_memory_limit() {
if ( function_exists( 'wp_raise_memory_limit' ) ) {
return wp_raise_memory_limit( 'admin' );
}
$current_limit = @ini_get( 'memory_limit' );
$current_limit_int = self::convert_hr_to_bytes( $current_limit );
if ( -1 === $current_limit_int ) {
return false;
}
$wp_max_limit = WP_MAX_MEMORY_LIMIT;
$wp_max_limit_int = self::convert_hr_to_bytes( $wp_max_limit );
$filtered_limit = apply_filters( 'admin_memory_limit', $wp_max_limit );
$filtered_limit_int = self::convert_hr_to_bytes( $filtered_limit );
if ( -1 === $filtered_limit_int || ( $filtered_limit_int > $wp_max_limit_int && $filtered_limit_int > $current_limit_int ) ) {
if ( false !== @ini_set( 'memory_limit', $filtered_limit ) ) {
return $filtered_limit;
} else {
return false;
}
} elseif ( -1 === $wp_max_limit_int || $wp_max_limit_int > $current_limit_int ) {
if ( false !== @ini_set( 'memory_limit', $wp_max_limit ) ) {
return $wp_max_limit;
} else {
return false;
}
}
return false;
}
/**
* Attempts to raise the PHP timeout for time intensive processes.
*
* Only allows raising the existing limit and prevents lowering it. Wrapper for wc_set_time_limit(), when available.
*
* @param int The time limit in seconds.
*/
public static function raise_time_limit( $limit = 0 ) {
if ( $limit < ini_get( 'max_execution_time' ) ) {
return;
}
if ( function_exists( 'wc_set_time_limit' ) ) {
wc_set_time_limit( $limit );
} elseif ( function_exists( 'set_time_limit' ) && false === strpos( ini_get( 'disable_functions' ), 'set_time_limit' ) && ! ini_get( 'safe_mode' ) ) {
@set_time_limit( $limit );
}
}
}