3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $array = [ [ 'a' => 1, 'b' => 2, 'c' => 3], [ 'a' => 4, 'b' => 5, 'c' => 6], [ 'a' => 7, 'b' => 8, 'c' => 9] ]; $column = array_column($array, 'a'); foreach ($array as &$val) { unset($val['a']); } echo "Array output (by 'for'):\n"; for ($i = 0; $i < 3; ++$i) { echo implode(', ', $array[$i]) . "\n"; } echo "Array output (by 'foreach'):\n"; foreach ($array as $val) { echo implode(', ', $array) . "\n"; } echo "Array output (by $i):\n"; for ($i = 0; $i < 3; ++$i) { echo implode(', ', $array[$i]) . "\n"; }
Output for 5.5.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Array output (by 'for'): 2, 3 5, 6 8, 9 Array output (by 'foreach'): Notice: Array to string conversion in /in/dtiu7 on line 20 Notice: Array to string conversion in /in/dtiu7 on line 20 Notice: Array to string conversion in /in/dtiu7 on line 20 Array, Array, Array Notice: Array to string conversion in /in/dtiu7 on line 20 Notice: Array to string conversion in /in/dtiu7 on line 20 Notice: Array to string conversion in /in/dtiu7 on line 20 Array, Array, Array Notice: Array to string conversion in /in/dtiu7 on line 20 Notice: Array to string conversion in /in/dtiu7 on line 20 Notice: Array to string conversion in /in/dtiu7 on line 20 Array, Array, Array Array output (by 3): 2, 3 5, 6 5, 6
Output for 5.4.0 - 5.4.45
Fatal error: Call to undefined function array_column() in /in/dtiu7 on line 8
Process exited with code 255.
Output for 5.2.3 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/dtiu7 on line 2
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.2
<br /> <b>Parse error</b>: syntax error, unexpected '[' in <b>/in/dtiu7</b> on line <b>2</b><br />
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
<br /> <b>Parse error</b>: parse error, unexpected '[' in <b>/in/dtiu7</b> on line <b>2</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.3.4
<br /> <b>Parse error</b>: parse error in <b>/in/dtiu7</b> on line <b>2</b><br />
Process exited with code 255.