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To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
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 |
|---|---|
| 2108 | * Filter the value of a specific post field before saving. |
| 2109 | * |
| 2110 | * The dynamic portion of the hook name, `$field`, refers to the post |
| 2111 | * field name. |
| 2112 | * |
| 2113 | * @since 2.3.0 |
| 2114 | * |
| 2115 | * @param mixed $value Value of the post field. |
| 2116 | */ |
| 2117 | $value = apply_filters( "{$field}_pre", $value ); |
| 2118 | } |
| 2119 | } else { |
| 2120 | |
| 2121 | // Use display filters by default. |
| 2122 | if ( $prefixed ) { |
| 2123 | |
| 2124 | /** |
| 2125 | * Filter the value of a specific post field for display. |
| 2126 | * |