readonly() │ WP 4.9.0

Deprecated since 5.9.0. It is no longer supported and may be removed in future releases. Use wp_readonly() introduced in 5.9.0 instead.

Compares 2 values, if they match, outputs the string readonly='readonly'. Used for the tag <input>.

The function is deprecated, use wp_readonly() instead.

This is one of 4 helper functions for forms: checked(), disabled(), selected(), readonly().

Uses: __checked_selected_helper()

No Hooks.

Returns

String. Outputs readonly='readonly' or an empty string ''.

If the last parameter $echo is false, the function will return the value instead of outputting it.

Usage

readonly( $readonly_value, $current, $display );

$readonly(mixed) (required): One of the values to compare.
$current(mixed): The second value to compare.
Default: true
$display(boolean): Whether to output the result.
Default: true

Examples

#1 Let's add the readonly attribute

Suppose you want to add a readonly value to the field if the current user can't edit post 25:

<input type='text' name='myname' value='Value' <?php readonly( current_user_can('edit_post', 25 ) ?> />

Notes

See: wp_readonly()

Changelog

Since 4.9.0	Introduced.
Deprecated since 5.9.0	Use wp_readonly() introduced in 5.9.0.

`readonly() readonly` code ^{WP 6.9.1}

wp-includes/php-compat/readonly.php

function readonly( $readonly_value, $current = true, $display = true ) {
	_deprecated_function( __FUNCTION__, '5.9.0', 'wp_readonly()' );
	return wp_readonly( $readonly_value, $current, $display );
}