3v4l.org

run code in 300+ PHP versions simultaneously
<?php $b = "tradala"; $b[0] = "mad"; $b[1] = "muha"; echo $b; echo "\n"; $c = ""; $c[0] = "mad"; $c[1] = "muha"; print_r($c);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Only the first byte will be assigned to the string offset in /in/jpZRu on line 4 Warning: Only the first byte will be assigned to the string offset in /in/jpZRu on line 5 mmadala Warning: Only the first byte will be assigned to the string offset in /in/jpZRu on line 13 Warning: Only the first byte will be assigned to the string offset in /in/jpZRu on line 14 mm
Output for 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
mmadala mm
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33
mmadala Array ( [0] => mad [1] => muha )

preferences:
284.7 ms | 404 KiB | 424 Q