wpdb::esc_like( string $text ): string

First half of escaping for LIKE special characters % and _ before preparing for SQL.


Use this only before wpdb::prepare() or esc_sql() . Reversing the order is very bad for security.

Example Prepared Statement:

$wild = '%';
$find = 'only 43% of planets';
$like = $wild . $wpdb->esc_like( $find ) . $wild;
$sql  = $wpdb->prepare( "SELECT * FROM $wpdb->posts WHERE post_content LIKE %s", $like );

Example Escape Chain:

$sql  = esc_sql( $wpdb->esc_like( $input ) );

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$text string Required
The raw text to be escaped. The input typed by the user should have no extra or deleted slashes.

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string Text in the form of a LIKE phrase. The output is not SQL safe.
Call wpdb::prepare() or wpdb::_real_escape() next.

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File: wp-includes/class-wpdb.php. View all references

public function esc_like( $text ) {
	return addcslashes( $text, '_%\\' );

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Version Description
4.0.0 Introduced.

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