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2 changes: 1 addition & 1 deletion HM/Sniffs/Performance/SlowMetaQuerySniff.php
Original file line number Diff line number Diff line change
Expand Up @@ -264,7 +264,7 @@ protected function get_array_indices( int $array_start, int $array_end ) : array
*
* @param string $compare Comparison value
*/
protected function check_compare_value( string $compare, int $stackPtr = null ) : void {
protected function check_compare_value( string $compare, ?int $stackPtr = null ) : void {
if ( empty( $stackPtr ) ) {
$stackPtr = $this->stackPtr;
}
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