Online PHP syntax checker / validator

Question

Could someone refer me to an online PHP validator? It would be of much help.

Thanks in advance!

I would like one that would find the errors in my PHP script, display at which line the error is at, and possibly explain the error. — Web_Designer, Mar 11 '11 at 06:10
Perhaps you could write your own? Just need to use `php -l [filename]` to parse the php file, and not execute it. — Jacob, Mar 11 '11 at 06:15
Why an online validator instead of using an IDE such as NetBeans or ZendStudio? I think a really inquisitive web developer would use a desktop validator instead of an online validator, I would not trust the later to be more reliable... — amateur barista, Mar 11 '11 at 06:19
@Jacob is `php -l [filename]` a parsing as part of php's compiler? — Kellen Stuart, Jun 24 '16 at 02:38

score 33 · Accepted Answer · answered Mar 11 '11 at 06:43

To expand on my comment.

You can validate on the command line using php -l [filename], which does a syntax check only (lint). This will depend on your php.ini error settings, so you can edit you php.ini or set the error_reporting in the script.

Here's an example of the output when run on a file containing:

<?php
echo no quotes or semicolon

Results in:

PHP Parse error:  syntax error, unexpected T_STRING, expecting ',' or ';' in badfile.php on line 2

Parse error: syntax error, unexpected T_STRING, expecting ',' or ';' in badfile.php on line 2

Errors parsing badfile.php

I suggested you build your own validator.

A simple page that allows you to upload a php file. It takes the uploaded file runs it through php -l and echos the output.

Note: this is not a security risk it does not execute the file, just checks for syntax errors.

Here's a really basic example of creating your own:

<?php
if (isset($_FILES['file'])) {
    echo '<pre>';
    passthru('php -l '.$_FILES['file']['tmp_name']);
    echo '</pre>';
}
?>
<form action="" method="post" enctype="multipart/form-data">
    <input type="file" name="file"/>
    <input type="submit"/>
</form>

It being a security risk or not depends on where the file was uploaded. — Manish Burman, Jan 03 '13 at 05:57
If you don't have php in your `$PATH` variable you can `cd` to the directory where `php.exe` exists and call `php.exe -l C:\path\to\file.php`. — Kellen Stuart, Jun 24 '16 at 02:36

score 7 · Answer 2 · answered Mar 11 '11 at 06:10

7

I found this for online php validation:-

http://www.icosaedro.it/phplint/phplint-on-line.html

Hope this helps.

answered Mar 11 '11 at 06:10

Mukesh Chapagain

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score 5 · Answer 3 · edited Jan 29 '19 at 21:46

5

Here's one more for you that not only performs the php -l check for you, but also does some secondary analysis for mistakes that would not be considered invalid (e.g. declaring a variable with a double equal sign).

http://phpcodechecker.com/

edited Jan 29 '19 at 21:46

Seth McClaine

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answered Nov 04 '11 at 14:28

Mario Lurig

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When the file is too large, it throws Error 414 URI Too long – Amir Hajiha Jun 26 '18 at 15:27

score 4 · Answer 4 · edited May 23 '17 at 12:24

4

Here is a similar question to yours. (Practically the same.)

What ways are there to validate PHP code?

Edit

The top answer there suggest this resource:

http://www.meandeviation.com/tutorials/learnphp/php-syntax-check/v4/syntax-check.php

edited May 23 '17 at 12:24

Community

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answered Mar 11 '11 at 06:09

Flipper

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first link is dead `What ways are there to validate PHP code?` – Mike Casan Ballester Apr 11 '18 at 09:35

score 1 · Answer 5 · answered Feb 15 '14 at 15:36

1

Ther's a new php code check online:

http://www.piliapp.com/php-syntax-check/

answered Feb 15 '14 at 15:36

StarsSky

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score 1 · Answer 6 · answered Sep 17 '15 at 16:59

1

http://phpcodechecker.com/ performs syntax check and a custom check for common errors.

I'm a novice, but it helped me.

answered Sep 17 '15 at 16:59

Mark Gavagan

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Already covered by [Mario Lurig's answer](https://stackoverflow.com/a/8010780/3303195). – faintsignal Feb 26 '19 at 19:26

score 0 · Answer 7 · answered Jun 25 '13 at 12:55

0

Here is also a good and simple site to check your php codes and share your code with fiends :

http://trycodeonline.com

answered Jun 25 '13 at 12:55

Rohitashv Singhal

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does not exist anymore – StarsSky Feb 15 '14 at 15:34
Try http://phpsyntaxchecker.com – Arvind Oct 26 '16 at 11:15
Try [php online](https://wtools.io/php-sandbox) This tool allow you to check your php codes, execute, and share your code with fiends. – overals May 14 '18 at 22:11

score 0 · Answer 8 · answered Oct 22 '13 at 17:12

0

In case you're interested, an offline checker that does complicated type analysis: http://strongphp.org It is not online however.

answered Oct 22 '13 at 17:12

mutewitness

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Online PHP syntax checker / validator

8 Answers8