Wordpress/wp-includes/functions-compat.php

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<?php
/* Functions missing from older PHP versions */
/* Added in PHP 4.2.0 */
if (!function_exists('floatval')) {
function floatval($string) {
return ((float) $string);
}
}
if (!function_exists('is_a')) {
function is_a($object, $class) {
// by Aidan Lister <aidan@php.net>
if (get_class($object) == strtolower($class)) {
return true;
} else {
return is_subclass_of($object, $class);
}
}
}
if (!function_exists('ob_clean')) {
function ob_clean() {
// by Aidan Lister <aidan@php.net>
if (@ob_end_clean()) {
return ob_start();
}
return false;
}
}
/* Added in PHP 4.3.0 */
function printr($var, $do_not_echo = false) {
// from php.net/print_r user contributed notes
ob_start();
print_r($var);
$code = htmlentities(ob_get_contents());
ob_clean();
if (!$do_not_echo) {
echo "<pre>$code</pre>";
}
return $code;
}
?>