is_serialized_string( string $data )

Check whether serialized data is of string type.

Parameters

$data

(string) (Required) Serialized data.

Return

(bool) False if not a serialized string, true if it is.

Source

File: wp-includes/functions.php

function is_serialized_string( $data ) {
	// if it isn't a string, it isn't a serialized string.
	if ( ! is_string( $data ) ) {
		return false;
	}
	$data = trim( $data );
	if ( strlen( $data ) < 4 ) {
		return false;
	} elseif ( ':' !== $data[1] ) {
		return false;
	} elseif ( ';' !== substr( $data, -1 ) ) {
		return false;
	} elseif ( 's' !== $data[0] ) {
		return false;
	} elseif ( '"' !== substr( $data, -2, 1 ) ) {
		return false;
	} else {
		return true;
	}
}

Changelog

Version Description
2.0.5 Introduced.

© 2003–2021 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/functions/is_serialized_string