maybe_serialize( string|array|object $data )

Serialize data, if needed.

Contents

Description Description

Parameters Parameters

$data

(string|array|object) (Required) Data that might be serialized.

Top ↑

Return Return

(mixed) A scalar data

Top ↑

Source Source

File: wp-includes/functions.php 

function maybe_serialize( $data ) {
	if ( is_array( $data ) || is_object( $data ) )
		return serialize( $data );

	// Double serialization is required for backward compatibility.
	// See https://core.trac.wordpress.org/ticket/12930
	// Also the world will end. See WP 3.6.1.
	if ( is_serialized( $data, false ) )
		return serialize( $data );

	return $data;
}

Expand full source code Collapse full source code View on Trac

Top ↑

Changelog Changelog

Changelog
Version Description
2.0.5 Introduced.

Top ↑

Top ↑

Used By Used By

Used By
Used By Description
wp-includes/option.php: update_network_option()

Update the value of a network option that was already added.
wp-includes/option.php: add_network_option()

Add a new network option.
wp-includes/deprecated.php: update_usermeta()

Update metadata of user.
wp-includes/option.php: update_option()

Update the value of an option that was already added.
wp-includes/option.php: add_option()

Add a new option.
wp-includes/meta.php: delete_metadata()

Delete metadata for the specified object.
wp-includes/meta.php: update_metadata_by_mid()

Update meta data by meta ID
wp-includes/meta.php: add_metadata()

Add metadata for the specified object.
wp-includes/meta.php: update_metadata()

Update metadata for the specified object. If no value already exists for the specified object ID and metadata key, the metadata will be added.
Show 4 more used by Hide more used by

Top ↑

User Contributed Notes User Contributed Notes

  1. Skip to note content
    You must log in to vote on the helpfulness of this noteVote results for this note: 0You must log in to vote on the helpfulness of this note
    Contributed by Codex —

    Basic Examples

    ‘Hello World!’, ‘foo’ => ‘bar’ );
    echo maybe_serialize( $data );
    // a:2:{i:1;s:12:”Hello World!”;s:3:”foo”;s:3:”bar”;}

    // A serialized string will be serialized again.
    $data = ‘a:2:{i:1;s:12:”Hello World!”;s:3:”foo”;s:3:”bar”;}’;
    echo maybe_serialize( $data );
    // s:50:”a:2:{i:1;s:12:”Hello World!”;s:3:”foo”;s:3:”bar”;}”;

    ?>

  2. Skip to note content
    You must log in to vote on the helpfulness of this noteVote results for this note: 0You must log in to vote on the helpfulness of this note
    Contributed by Codex —

    Basic Examples

    <?php

// Strings are returned untouched.
$data = 'Hello World!';
echo maybe_serialize( $data );
// Hello World!

// Integers, floats and boolean values are also returned untouched.
$data = 55;
echo maybe_serialize( $data );
// 55

$data = 4.560
echo maybe_serialize( $data );
// 4.560

$data = true;
$data = maybe_serialize( $data );
// $data = true;

$data = null;
$data = maybe_serialize( $data );
// $data = null

// An array or object will be returned as a serialized string.
$data = array( 1 => 'Hello World!', 'foo' => 'bar' );
echo maybe_serialize( $data );
// a:2:{i:1;s:12:"Hello World!";s:3:"foo";s:3:"bar";}

// A serialized string will be serialized again.
$data = 'a:2:{i:1;s:12:"Hello World!";s:3:"foo";s:3:"bar";}';
echo maybe_serialize( $data );
// s:50:"a:2:{i:1;s:12:"Hello World!";s:3:"foo";s:3:"bar";}";

?>

    Expand full source codeCollapse full source code

You must log in before being able to contribute a note or feedback.