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run code in 300+ PHP versions simultaneously
<?php $templateData = [ 'h', 1, 2, 3, 'c-1-3', 3, 5, 'c-2-3', 3, 'c-3-3', 'f', 2 ]; $result = []; foreach ($templateData as $v) { if (!is_int($v)) { if (isset($k2) && empty($ref2[$k2])) { $ref2[$k2][] = 0; // set default 0 if previous group received no values } $k2 = $v; // cache the level 2 value $k1 = strtok($v, '-'); // cache the level 1 value if (!isset($ref1[$k1])) { $ref1[$k1] = []; $result[] =& $ref1[$k1]; // push level 1 reference into result array } if (!isset($ref2[$k2])) { $ref2[$k2] = []; $ref1[$k1][] =& $ref2[$k2]; // push level 2 reference into level 1 reference } } elseif (isset($k2)) { $ref2[$k2][] = $v; // push integer into level 2 reference } } var_export($result);
Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14, 8.5.0
array ( 0 => array ( 0 => array ( 0 => 1, 1 => 2, 2 => 3, ), ), 1 => array ( 0 => array ( 0 => 3, 1 => 5, ), 1 => array ( 0 => 3, ), 2 => array ( 0 => 0, ), ), 2 => array ( 0 => array ( 0 => 2, ), ), )
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.
Output for 8.3.28
/bin/php-8.3.28: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.3.28) /bin/php-8.3.28: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.3.28) /bin/php-8.3.28: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.3.28) /bin/php-8.3.28: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.3.28)
Process exited with code 1.
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