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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 |
---|---|
1758 | global $wpsmiliestrans; |
1759 |
|
1760 | if ( count( $matches ) == 0 ) |
1761 | return ''; |
1762 |
|
1763 | $smiley = trim( reset( $matches ) ); |
1764 | $img = $wpsmiliestrans[ $smiley ]; |
1765 | $smiley_masked = esc_attr( $smiley ); |
1766 |
|
1767 | $src_url = apply_filters( 'smilies_src', includes_url( "images/smilies/$img" ), $img, site_url() ); |
1768 |
|
1769 | return " <img src='$src_url' alt='$smiley_masked' class='wp-smiley' /> "; |
1770 | } |
1771 |
|
1772 | /** |
1773 | * Convert text equivalent of smilies to images. |
1774 | * |
1775 | * Will only convert smilies if the option 'use_smilies' is true and the global |
1776 | * used in the function isn't empty. |