Filter hook '{$field}_pre'

Hook Information

Hook Parameters

Usage Examples

<?php
// Hook into {$field}_pre
add_filter('{$field}_pre', 'my_custom_filter', 10, 1);

function my_custom_filter($value) {
    // Your custom filtering logic here
    return $value;
}

Source Code Context

<?php
3142  			 *
3143  			 * @since 2.3.0
3144  			 *
3145  			 * @param mixed $value Value of the post field.
3146  			 */
3147  			$value = apply_filters( "{$field}_pre", $value );
3148  		}
3149  	} else {
3150  
3151  		// Use display filters by default.
3152  		if ( $prefixed ) {

PHP Documentation

<?php
/**
			 * Filters the value of a specific post field before saving.
			 *
			 * Only applied to post fields with a name which is *not* prefixed with `post_`.
			 *
			 * The dynamic portion of the hook name, `$field`, refers to the post
			 * field name. Possible filter names include:
			 *
			 *  - `ID_pre`
			 *  - `comment_status_pre`
			 *  - `ping_status_pre`
			 *  - `to_ping_pre`
			 *  - `pinged_pre`
			 *  - `guid_pre`
			 *  - `menu_order_pre`
			 *  - `comment_count_pre`
			 *
			 * @since 2.3.0
			 *
			 * @param mixed $value Value of the post field.
			 */