the function openssl_get_publickey() 's result is diferrent in php 7 and php5. 6.16 and php5.5.12 ???? so what is wrong?????

["v-LeonHou" <764436364@xxxxxx>]

hi everyone,

today i meet a strange  while the function openssl_get_publickey()  runs well in php 7 while report an error in php5. 6.16 and php5.5.12


here is the test code:


<?php


//define a  pem formatted string varaible named $key
$key = <<<EOF
-----BEGIN PUBLIC KEY-----
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCnxj/9qwVfgoUh/y2W89L6BkRAFljhNhgPdyPuBV64bfQNN1PjbCzkIM6qRdKBoLPXmKKMiFYnkd6rAoprih3/PrQEB/VsW8OoM8fxn67UDYuyBTqA23MML9q1+ilIZwBC2AQ2UBVOrFXfFl75p6/B5KsiNG9zpgmLCUYuLkxpLQIDAQAB
-----END PUBLIC KEY-----
EOF;


//get the 
$res = openssl_get_publickey($key); 
var_dump($res);



?>




while in php7.0.0  the result is normal and correct  here is the output
{
    D:\wamp64\www\php\index.php(50) : eval()'d code:24:resource(4, OpenSSL key)
}


but not the same result in php 5.6.16 and php 5.5.12 here is the output
{
    D:\wamp64\www\php\index.php(50) : eval()'d code:24:boolean false
}


so can you help me  with the problem???


thanks........