Online PHP editor | output for 8F1BI

@ 2019-12-02T13:05:02Z

<?php

$ar = Array
(
    0 => "[",
    1 => "    [",
    2 => "       [",
    3 =>             "Test",
    4 =>             "Server1",
    5 =>             null,
    6 =>             "Server2",
    7 =>             null,
    8 =>             "",
    9 =>             "stopped",
    10 =>  "       ]",
    11 =>  "   ]",
    12 => "]",
);


function cleanArray($ar){ 
    $res = [];
    foreach($ar as $val){ 
        preg_match ('/[\[\]]+/', $val, $matches); 
        if(count($matches) == 0) $res[] = $val;
    }
    return $res;
}


$res = cleanArray($ar);  

print_r($res);

Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3: Deprecated: preg_match(): Passing null to parameter #2 ($subject) of type string is deprecated in /in/8F1BI on line 24 Deprecated: preg_match(): Passing null to parameter #2 ($subject) of type string is deprecated in /in/8F1BI on line 24 Array ( [0] => Test [1] => Server1 [2] => [3] => Server2 [4] => [5] => [6] => stopped )
Output for 7.1.26 - 7.1.33, 7.2.17 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30: Array ( [0] => Test [1] => Server1 [2] => [3] => Server2 [4] => [5] => [6] => stopped )

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