checked()

最后更新于：2021-11-25 20:28:08

Outputs the HTML checked attribute.

参数

$checked

(mixed) (Required) One of the values to compare

$current

(mixed) (Optional) (true) The other value to compare if not just true

Default value: true

$echo

(bool) (Optional) Whether to echo or just return the string

Default value: true

响应

(string) HTML attribute or empty string

源文件

文件: gc-includes/general-template.php

function checked( $checked, $current = true, $echo = true ) {
	return __checked_selected_helper( $checked, $current, $echo, 'checked' );
}

<?php

// Get an array of options from the database.
$options = get_option( 'slug_option' );

// Get the value of this option.
$checked = $options['self-destruct'];

// The value to compare with (the value of the checkbox below).
$current = 1; 

// True by default, just here to make things clear.
$echo = true;

?>
<input name="slug-option[self-destruct]" value="1"
	<?php checked( $checked, $current, $echo ); ?>/>