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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 |
|---|---|
| 1487 | |
| 1488 | if (count($smiley) == 0) { |
| 1489 | return ''; |
| 1490 | } |
| 1491 | |
| 1492 | $smiley = trim(reset($smiley)); |
| 1493 | $img = $wpsmiliestrans[$smiley]; |
| 1494 | $smiley_masked = esc_attr($smiley); |
| 1495 | |
| 1496 | $srcurl = apply_filters('smilies_src', includes_url("images/smilies/$img"), $img, site_url()); |
| 1497 | |
| 1498 | return " <img src='$srcurl' alt='$smiley_masked' class='wp-smiley' /> "; |
| 1499 | } |
| 1500 | |
| 1501 | /** |
| 1502 | * Convert text equivalent of smilies to images. |
| 1503 | * |
| 1504 | * Will only convert smilies if the option 'use_smilies' is true and the global |
| 1505 | * used in the function isn't empty. |