.
/**
* Functions to help in backwards compatibility of PHP versions, etc.
* @package CoreAPI
* @subpackage PHPCompatibilityAPI
* @copyright Copyright (C) 2000 - 2002 Kenzaburo Ito - kenito@300baud.org
* @copyright Copyright (C) 2002 - 2009 Mantis Team - mantisbt-dev@lists.sourceforge.net
* @link http://www.mantisbt.org
*/
# Constant for our minimum required PHP version
define( 'PHP_MIN_VERSION', '5.1.0' );
# cache array of comparisons
$g_cached_version = array();
# Returns true if the current PHP version is higher than the one
# specified in the given string
function php_version_at_least( $p_version_string ) {
global $g_cached_version;
if( isset( $g_cached_version[$p_version_string] ) ) {
return $g_cached_version[$p_version_string];
}
$t_curver = array_pad( explode( '.', phpversion() ), 3, 0 );
$t_minver = array_pad( explode( '.', $p_version_string ), 3, 0 );
for( $i = 0;$i < 3;$i = $i + 1 ) {
$t_cur = (int) $t_curver[$i];
$t_min = (int) $t_minver[$i];
if( $t_cur < $t_min ) {
$g_cached_version[$p_version_string] = false;
return false;
}
elseif( $t_cur > $t_min ) {
$g_cached_version[$p_version_string] = true;
return true;
}
}
# if we get here, the versions must match exactly so:
$g_cached_version[$p_version_string] = true;
return true;
}
# Enforce our minimum requirements
if( !php_version_at_least( PHP_MIN_VERSION ) ) {
@ob_end_clean();
echo 'FATAL ERROR: Your version of PHP is too old. Mantis requires PHP version ' . PHP_MIN_VERSION . ' or newer
Your version of PHP is version ' . phpversion();
die();
}
ini_set( 'magic_quotes_runtime', 0 );
# Added in PHP 5.2.0
if ( !function_exists( 'memory_get_peak_usage') ) {
function memory_get_peak_usage() {
return memory_get_usage();
}
}