translate_smiley( array $matches )
Convert one smiley code to the icon graphic file equivalent.
Description
Callback handler for convert_smilies().
Looks up one smiley code in the $wpsmiliestrans global array and returns an <img>
string for that smiley.
Parameters
- $matches
-
(Required) Single match. Smiley code to convert to image.
Return
(string) Image string for smiley.
Source
File: wp-includes/formatting.php
function translate_smiley( $matches ) {
global $wpsmiliestrans;
if ( count( $matches ) == 0 )
return '';
$smiley = trim( reset( $matches ) );
$img = $wpsmiliestrans[ $smiley ];
$matches = array();
$ext = preg_match( '/\.([^.]+)$/', $img, $matches ) ? strtolower( $matches[1] ) : false;
$image_exts = array( 'jpg', 'jpeg', 'jpe', 'gif', 'png' );
// Don't convert smilies that aren't images - they're probably emoji.
if ( ! in_array( $ext, $image_exts ) ) {
return $img;
}
/**
* Filters the Smiley image URL before it's used in the image element.
*
* @since WP-2.9.0
*
* @param string $smiley_url URL for the smiley image.
* @param string $img Filename for the smiley image.
* @param string $site_url Site URL, as returned by site_url().
*/
$src_url = apply_filters( 'smilies_src', includes_url( "images/smilies/$img" ), $img, site_url() );
return sprintf( '<img src="%s" alt="%s" class="wp-smiley" style="height: 1em; max-height: 1em;" />', esc_url( $src_url ), esc_attr( $smiley ) );
}
Changelog
Version | Description |
---|---|
WP-2.8.0 | Introduced. |