3v4l.org

run code in 300+ PHP versions simultaneously
<?php function t($parent_key, $parent_array, &$data) { foreach ($parent_array as $k => $v) { if (is_array($v)) { t("${parent_key}_${k}", $v, $data); } else { $data[trim("${parent_key}_${k}", '_')] = $v; } } } $data = array(); $attributes = array( 'Users' => array( 'Name' => 'Name', ), 'Address' => 'Address', 'Tags' => array( 0 => array( 'Key' => 'Key', 'Value' => 'Value', ), 1 => array( 'Key' => 'Key', ), 2 => array( ) ), ); t('', $attributes, $data); print_r($data);
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Deprecated: Using ${var} in strings is deprecated, use {$var} instead in /in/UsD0a on line 6 Deprecated: Using ${var} in strings is deprecated, use {$var} instead in /in/UsD0a on line 6 Deprecated: Using ${var} in strings is deprecated, use {$var} instead in /in/UsD0a on line 8 Deprecated: Using ${var} in strings is deprecated, use {$var} instead in /in/UsD0a on line 8 Array ( [Users_Name] => Name [Address] => Address [Tags_0_Key] => Key [Tags_0_Value] => Value [Tags_1_Key] => Key )
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 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28
Array ( [Users_Name] => Name [Address] => Address [Tags_0_Key] => Key [Tags_0_Value] => Value [Tags_1_Key] => Key )
preferences:
232.33 ms | 405 KiB | 399 Q