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Source View: {$field}_pre

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Line Code
2850                 * Filters the value of a specific post field before saving.
2851                 *
2852                 * The dynamic portion of the hook name, `$field`, refers to the post
2853                 * field name.
2854                 *
2855                 * @since 2.3.0
2856                 *
2857                 * @param mixed $value Value of the post field.
2858                 */
2859                $value = apply_filters( "{$field}_pre", $value );
2860           }
2861      } else {
2862
2863           // Use display filters by default.
2864           if ( $prefixed ) {
2865
2866                /**
2867                 * Filters the value of a specific post field for display.
2868                 *