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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.
| Line | Code |
|---|---|
| 1424 | return ''; |
| 1425 | } |
| 1426 | |
| 1427 | $siteurl = get_option( 'siteurl' ); |
| 1428 | |
| 1429 | $smiley = trim(reset($smiley)); |
| 1430 | $img = $wpsmiliestrans[$smiley]; |
| 1431 | $smiley_masked = esc_attr($smiley); |
| 1432 | |
| 1433 | $srcurl = apply_filters('smilies_src', "$siteurl/wp-includes/images/smilies/$img", $img, $siteurl); |
| 1434 | |
| 1435 | return " <img src='$srcurl' alt='$smiley_masked' class='wp-smiley' /> "; |
| 1436 | } |
| 1437 | |
| 1438 | /** |
| 1439 | * Convert text equivalent of smilies to images. |
| 1440 | * |
| 1441 | * Will only convert smilies if the option 'use_smilies' is true and the global |
| 1442 | * used in the function isn't empty. |