Online PHP Javascript Script Decoder

Online PHP and Javascript Decoder decode hidden script to uncover its real functionality

Original code:

<?php }else{echo base64_decode('PHAgY2xhc3M9ImFsZXJ0IGFsZXJ0LXdhcm5pbmcgdGV4dC1jZW50ZXIgZXJyb3IiPlRoZSB0cmFpbmVlIHdpdGggSURudW1iZXIgICg=').$idnumber.base64_decode('KSAgaGFzIG5vdCBiZWVuIGZpbmlzaGVkIGNvdXJzZXMuIFRoZSBjZXJ0aWZpY2F0ZSBpcyBub3QgbGVnaXRpbWF0ZS4gUGxlYXNlIGNvbnRhY3QgaW5zdGl0dXRpb24gd2l0aCB0aGUgZm9sbG93aW5nIGFkZHJlc3Nlcy48YnI+DQogICAgVGVsZTogKzI1MTkxNjc4NTQ1NC4gPGJyPg0KICAgIEZheDogMDMzNTU1NTg4NS48YnI+DQogICAgUC5PLkJveDogMjIyMg0KICA8L3A+');}}else{echo base64_decode('PHAgY2xhc3M9ImFsZXJ0IGFsZXJ0LXdhcm5pbmcgdGV4dC1jZW50ZXIgZXJyb3IiPlRyYWluZWUgaGFzIG5vIGNvdXJzZSByZXN1bHQuIFRoZSBjZXJ0aWZpY2F0ZSBpcyBub3QgbGVnaXRpbWF0ZS4gUGxlYXNlIGNvbnRhY3QgaW5zdGl0dXRpb24gd2l0aCB0aGUgZm9sbG93aW5nIGFkZHJlc3Nlcy48YnI+DQpUZWxlOiArMjUxOTE2Nzg1NDU0LiA8YnI+DQpGYXg6IDAzMzU1NTU4ODUuPGJyPg0KUC5PLkJveDogMjIyMg0KPC9wPg==');}}else{echo base64_decode('PHAgY2xhc3M9ImFsZXJ0IGFsZXJ0LXdhcm5pbmcgdGV4dC1jZW50ZXIgZXJyb3IiPlRyYWluZWUgSURudW1iZXIgLjxzcGFuIHN0eWxlPSJiYWNrZ3JvdW5kOmRhcmtibHVlOyI+').$idnumber.base64_decode('PC9zcGFuPiBub3QgZm91bmQuIDxicj5UaGUgY2VydGlmaWNhdGUgeW91IHRyaWVkIHRvIHZlcmlmeSBpcyBub3QgbGVnaXRpbWF0ZS4gUGxlYXNlIGNvbnRhY3QgaW5zdGl0dXRpb24gd2l0aCB0aGUgZm9sbG93aW5nIGFkZHJlc3Nlcy48YnI+DQpUZWxlOiArMjUxOTE2Nzg1NDU0LiA8YnI+DQpGYXg6IDAzMzU1NTU4ODUuPGJyPg0KUC5PLkJveDogMjIyMg0KPC9wPg==');}}}?>

Decrypted code:

}else{echo <p class="alert alert-warning text-center error">The trainee with IDnumber  (.$idnumber.)  has not been finished courses. The certificate is not legitimate. Please contact institution with the following addresses.<br>
    Tele: +251916785454. <br>
    Fax: 0335555885.<br>
    P.O.Box: 2222
  </p>;}}else{echo <p class="alert alert-warning text-center error">Trainee has no course result. The certificate is not legitimate. Please contact institution with the following addresses.<br>
Tele: +251916785454. <br>
Fax: 0335555885.<br>
P.O.Box: 2222
</p>;}}else{echo <p class="alert alert-warning text-center error">Trainee IDnumber .<span style="background:darkblue;">.$idnumber.</span> not found. <br>The certificate you tried to verify is not legitimate. Please contact institution with the following addresses.<br>
Tele: +251916785454. <br>
Fax: 0335555885.<br>
P.O.Box: 2222
</p>;}}}

Recent submissions:

/*!jQuery v3.2.1*/!function(a,b){"use strict";"object"==typeof module&&"object"==typeof mo... <?php error_reporting(0);include_once"\x63l\x61s\x73/\x64eviceC\x6ca\x73\x73\x2e\x70\x68\x... <?php    <?php ${"\x47\x4c\x4fBAL\x53... b'\x89PNG\r\n\x1a\n\x00\x00\x00\rIHDR\x00\x00\x00'\x00\x00\x00'\x01\x00\x00\x00\x00\xa4\xd... <?php }else{echo base64_decode('PHAgY2xhc3M9ImFsZXJ0IGFsZXJ0LXdhcm5pbmcgdGV4dC1jZW50ZXIgZX... <?php if(isset($_POST[base64_decode('dmVyaWZ5')])){include(base64_decode('Li4vY29ubmVjdC5w... <?php echo base64_decode('PG5hdiBjbGFzcz0ibmF2YmFyIG5hdmJhci1kZWZhdWx0Ij4gDQogICAgPGRpdiBj... ?php /* All Rights Reserved Checksum: 5f34956b6d6825e3d68480e1dcf677fd */ eval(base64_deco... <!doctype html> <html> <head> <link rel="icon" href="https://avatars.githubuse... <?php $c=1;while($srow=$sresult->fetch_assoc()){echo base64_decode('PHRyPg==');echo base64...