使用openssl库在php中构建具有现有模数和指数的公钥PEM文件

I have public's key's modulus and exponent. Can I generate the public key with openssl api in php ? I've read the http://php.net/manual/en/ref.openssl.php but there seems no function that archive that.

If openssl cannot do it(build public key with modulus and exponent), can i use any any option in php to do that?

Using phpseclib, a pure PHP RSA implementation:

<?php
include('Crypt/RSA.php');

$rsa = new Crypt_RSA();

$rsa->loadKey( array ('e'=>new Math_BigInteger('65537'), 'n'=>new Math_BigInteger('11944573237954459805614520005393273287786384679965238498958830373752732874397055'.
'98832111464872863171681422024469555089029360351247093972211786644957214280299847'.
'26868375359168203283442617134197706515425366188396513684446494070223079865755643'.
'116690165578452542158755074958452695530623055205290232290667934914919')) );

echo $rsa;

The output is as follows: