3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array( array( 'id' => 7, 'title' => 'Pongal', 'start' => '2016-05-16' ), array( 'id' => 7, 'title' => 'Mongok', 'start' => '2016-05-16' ) ); foreach($arr as $key => &$val){ $val['color'] = 'red'; } print_r($arr);
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0
Array ( [0] => Array ( [id] => 7 [title] => Pongal [start] => 2016-05-16 [color] => red ) [1] => Array ( [id] => 7 [title] => Mongok [start] => 2016-05-16 [color] => red ) )
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.

preferences:
206.12 ms | 407 KiB | 5 Q