add_shortcode( string $tag, callable $func )

Add hook for shortcode tag.

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Description Description

There can only be one hook for each shortcode. Which means that if another plugin has a similar shortcode, it will override yours or yours will override theirs depending on which order the plugins are included and/or ran.

Simplest example of a shortcode tag using the API:

// [footag foo="bar"]
function footag_func( $atts ) {
    return "foo = {
        $atts[foo]
    }";
}
add_shortcode( 'footag', 'footag_func' );

Example with nice attribute defaults:

// [bartag foo="bar"]
function bartag_func( $atts ) {
    $args = shortcode_atts( array(
        'foo' => 'no foo',
        'baz' => 'default baz',
    ), $atts );

    return "foo = {$args['foo']}";
}
add_shortcode( 'bartag', 'bartag_func' );

Example with enclosed content:

// [baztag]content[/baztag]
function baztag_func( $atts, $content = '' ) {
    return "content = $content";
}
add_shortcode( 'baztag', 'baztag_func' );

Parameters Parameters

$tag

(string) (Required) Shortcode tag to be searched in post content.

$func

(callable) (Required) Hook to run when shortcode is found.

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Source Source

File: wp-includes/shortcodes.php 

function add_shortcode($tag, $func) {
	global $shortcode_tags;

	if ( '' == trim( $tag ) ) {
		$message = __( 'Invalid shortcode name: Empty name given.' );
		_doing_it_wrong( __FUNCTION__, $message, '4.4.0' );
		return;
	}

	if ( 0 !== preg_match( '@[<>&/\[\]\x00-\x20=]@', $tag ) ) {
		/* translators: 1: shortcode name, 2: space separated list of reserved characters */
		$message = sprintf( __( 'Invalid shortcode name: %1$s. Do not use spaces or reserved characters: %2$s' ), $tag, '& / < > [ ] =' );
		_doing_it_wrong( __FUNCTION__, $message, '4.4.0' );
		return;
	}

	$shortcode_tags[ $tag ] = $func;
}

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Changelog Changelog

Changelog
Version Description
2.5.0 Introduced.

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User Contributed Notes User Contributed Notes

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    Contributed by Codex —

    Examples

    Simplest example of a shortcode tag using the API: [footag foo="bar"]

    add_shortcode( 'footag', 'wpdocs_footag_func' );
function wpdocs_footag_func( $atts ) {
	return "foo = {$atts['foo']}";
}

    Example with nice attribute defaults: [bartag foo="bar"]

    add_shortcode( 'bartag', 'wpdocs_bartag_func' );
function wpdocs_bartag_func( $atts ) {
	$atts = shortcode_atts( array(
		'foo' => 'no foo',
		'baz' => 'default baz'
	), $atts, 'bartag' );

	return "foo = {$atts['foo']}";
}

    Example with enclosed content: [baztag]content[/baztag]

    add_shortcode( 'baztag', 'wpdocs_baztag_func' );
function wpdocs_baztag_func( $atts, $content = "" ) {
	return "content = $content";
}

    If your plugin is designed as a class write as follows:

    add_shortcode( 'baztag', array( 'MyPlugin', 'wpdocs_baztag_func' ) );
class MyPlugin {
	public static function wpdocs_baztag_func( $atts, $content = "" ) {
		return "content = $content";
	}
}

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