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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
This hook occurs 2 times in this file.
| Line | Code |
|---|---|
| 4360 | 'baseUrl' => apply_filters( 'emoji_url', set_url_scheme( '//s.w.org/images/core/emoji/72x72/' ) ), |
| 4361 | |
| 4362 | /** |
| 4363 | * Filter the extension of the emoji files. |
| 4364 | * |
| 4365 | * @since 4.2.0 |
| 4366 | * |
| 4367 | * @param string The emoji extension. Default .png. |
| 4368 | */ |
| 4369 | 'ext' => apply_filters( 'emoji_ext', '.png' ), |
| 4370 | ); |
| 4371 | |
| 4372 | $version = 'ver=' . $wp_version; |
| 4373 | |
| 4374 | if ( SCRIPT_DEBUG ) { |
| 4375 | $settings['source'] = array( |
| 4376 | /** This filter is documented in wp-includes/class.wp-scripts.php */ |
| 4377 | 'wpemoji' => apply_filters( 'script_loader_src', includes_url( "js/wp-emoji.js?$version" ), 'wpemoji' ), |
| 4378 | /** This filter is documented in wp-includes/class.wp-scripts.php */ |
| Line | Code |
| 4466 | * @return string The encoded content. |
| 4467 | */ |
| 4468 | function wp_staticize_emoji( $text ) { |
| 4469 | $text = wp_encode_emoji( $text ); |
| 4470 | |
| 4471 | /** This filter is documented in wp-includes/formatting.php */ |
| 4472 | $cdn_url = apply_filters( 'emoji_url', set_url_scheme( '//s.w.org/images/core/emoji/72x72/' ) ); |
| 4473 | |
| 4474 | /** This filter is documented in wp-includes/formatting.php */ |
| 4475 | $ext = apply_filters( 'emoji_ext', '.png' ); |
| 4476 | |
| 4477 | $output = ''; |
| 4478 | /* |
| 4479 | * HTML loop taken from smiley function, which was taken from texturize function. |
| 4480 | * It'll never be consolidated. |
| 4481 | * |
| 4482 | * First, capture the tags as well as in between. |
| 4483 | */ |
| 4484 | $textarr = preg_split( '/(<.*>)/U', $text, -1, PREG_SPLIT_DELIM_CAPTURE ); |