Online PHP editor | output for Oa1sn

@ 2019-04-03T22:21:19Z

<?php

$data = "Hai FIELDMERGE_nickname,
    Your city is  FIELDMERGE_city and your gender is FIELDMERGE_gender. webinar title is FIELDMERGE_extraparam1
    Again your name is FIELDMERGE_nickname";

$arr = explode("FIELDMERGE_", $data);
array_shift($arr);
foreach($arr as $e) {
    $a = explode(" ", $e);
    $res[] = preg_replace('/[^a-z\d]/i', '', array_shift($a));
    //$res[] = trim(array_shift($a));
}
print_r($res);

Output for 7.1.25 - 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0 - 8.5.1: Array ( [0] => nickname [1] => city [2] => gender [3] => extraparam1 [4] => nickname )
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.

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