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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 |
---|---|
1571 | /** |
1572 | * Filters the attachment markup to be prepended to the post content. |
1573 | * |
1574 | * @since 2.0.0 |
1575 | * |
1576 | * @see prepend_attachment() |
1577 | * |
1578 | * @param string $p The attachment HTML output. |
1579 | */ |
1580 | $p = apply_filters( 'prepend_attachment', $p ); |
1581 |
|
1582 | return "$p\n$content"; |
1583 | } |
1584 |
|
1585 | // |
1586 | // Misc |
1587 | // |
1588 |
|
1589 | /** |