How to write a php file with PHP?

Question

I'm new in File handling. So I was wondering how would I go about to write a php file with php?

Let's say I want to make a php script which creates a file which contains the following code:

PHP File TO be Created

<?php
$item = "takes a variable from current file and put it here";
?>

Let's say I have a php which took the following from my form:

Code which takes a variable and writes it to another php file, exactly as it is

<?php
$item = $_GET['shirts'];

//Code which writes to Php File above
?>

I have no idea how to do this. Please be very explicit when you explain. Thanks :)

you want to use functions like `fwrite` etc so write contents to files. see that link above ^^ — scrowler, Nov 20 '13 at 19:46
Generating executable php code based on user input - is very bad idea. Just saying. — deb0rian, Nov 20 '13 at 19:46
@Shamil I've been reading about it, but I need a simpler explanation. I've already read the basics into that link you gave me an hour ago. — Please Delete me, Nov 20 '13 at 19:47
@Fratyr I want to create a config file actually which will contain Db infos, and that's the best way I'm thinking about it. Could you help? — Please Delete me, Nov 20 '13 at 19:48
See Q&A http://stackoverflow.com/q/14575253/1415724 although you will need to protect yourself by sanitizing input etc. Taken from **Related** >>> — Funk Forty Niner, Nov 20 '13 at 19:49
Why would you like to write a php file with variables from user input. I strongly recommend using a database for this purpose. — Lorenz Meyer, Nov 20 '13 at 19:49
Ok, and do read these two articles https://www.owasp.org/index.php/Top_10_2013-Top_10 and http://stackoverflow.com/q/60174/1415724 they will surely help. — Funk Forty Niner, Nov 20 '13 at 19:51

score 2 · Answer 1 · answered Nov 20 '13 at 19:46

Like this:

$var='that';
file_put_contents('newfile.php','<?php echo "thisthat' . $var . '"; ?>');

Note that if $var is coming from user input in any way you will need to be extremely careful to sanitize it so a hacker can't just do anything he wants on your server.

Documentation for file_put_contents here: php.net/file_put_contents

score 1 · Answer 2 · answered Nov 20 '13 at 19:47

1

file_put_contents('fileToCreate.php', '<?php' . "\n" . '$item = "' . $item . '";' . "\n" . '?>')

viz here: php.net/file_put_contents

answered Nov 20 '13 at 19:47

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How to write a php file with PHP?

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