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<?php function expensive_cb( $value ) { echo "expensive_cb\n"; return ! strip_tags( $value ); } $title_a = ''; $title_b = 'something'; if ( ! $title_a || ! expensive_cb( $title_a ) ) { echo "no title a\n"; } if ( ! $title_b || ! expensive_cb( $title_b ) ) { echo "no title b"; }
Output for 8.1.34, 8.2.27 - 8.2.30, 8.3.0 - 8.3.31, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7
no title a expensive_cb no title b
preferences:
57.55 ms | 752 KiB | 4 Q