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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 |
---|---|
1637 | /** |
1638 | * Filter the attachment markup to be prepended to the post content. |
1639 | * |
1640 | * @since 2.0.0 |
1641 | * |
1642 | * @see prepend_attachment() |
1643 | * |
1644 | * @param string $p The attachment HTML output. |
1645 | */ |
1646 | $p = apply_filters( 'prepend_attachment', $p ); |
1647 |
|
1648 | return "$p\n$content"; |
1649 | } |
1650 |
|
1651 | // |
1652 | // Misc |
1653 | // |
1654 |
|
1655 | /** |