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run code in 300+ PHP versions simultaneously
<?php $array = [ [1, 2014, 'context' => 'aaa'], [12, 2014, 'context' => 'aaa'], [5, 2014, 'context' => 'zzz'], ]; foreach ($array as $i => &$row) { if (!isset($ref[$row['context']])) { $ref[$row['context']] = &$row[0]; } else { $ref[$row['context']] += $row[0]; unset($array[$i]); } } var_export($array);
Output for 8.0.1 - 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 ( 0 => 13, 1 => 2014, 'context' => 'aaa', ), 2 => array ( 0 => 5, 1 => 2014, 'context' => 'zzz', ), )
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.
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128.14 ms | 407 KiB | 5 Q