3v4l.org

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<?php $category = array( 1 => array( 'id' => 1, 'parentID' => 0, 'name' => 'SUV auto parts' ), 2 => array( 'id' => 2, 'parentID' => 1, 'name' => 'Engine Related' ), 3 => array( 'id' => 3, 'parentID' => 2, 'name' => 'Spark Plugs' ), 4 => array( 'id' => 4, 'parentID' => 2, 'name' => 'Engine Oil' ), 5 => array( 'id' => 5, 'parentID' => 1, 'name' => 'Body related' ), 6 => array( 'id' => 6, 'parentID' => 0, 'name' => 'Sedan auto parts' ), 7 => array( 'id' => 7, 'parentID' => 6, 'name' => 'Engine Related' ), ); $parentId = 2; // set the parentID foreach($category as $key => $value) { if($value['parentID'] == $parentId) { echo '<pre>'; print_r($value); // print matching records echo '</pre>'; } }
Output for 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.13
<pre>Array ( [id] => 3 [parentID] => 2 [name] => Spark Plugs ) </pre><pre>Array ( [id] => 4 [parentID] => 2 [name] => Engine Oil ) </pre>

preferences:
112.29 ms | 407 KiB | 5 Q