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Can a PHP file edit itself?

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Apr 24.2011

I need a PHP file that can write to itself, I have a very good (and long) reason for doing this.
For example, I want test.php to open test.php and change the contents of test.php to something else.
Can I do this?

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PHP

14 Comments(s) ↴

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@NogDogApr 25.2011 — Yes, you can.
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@eval_BadCode_Apr 25.2011 — Yes... consider locking the file as you write to it, and making backups.
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@joe12joeApr 25.2011 — Yes it is possible. You may try this:

[code=php]<?php unlink(__FILE__); ?>
[/code]
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@svidgenApr 25.2011 — I would be interested in learning the good, long reason for this.
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@criterion9Apr 25.2011 — I would be interested in learning the good, long reason for this.[/QUOTE]

As would I. I'm always curious about stuff like this.
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@linkskuauthorApr 25.2011 — Ummm... let's just say I got the idea from hackforums.net :o

Do I simply use fopen and fwrite?
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@svidgenApr 25.2011 — I imagine you could just use file_get_contents() and file_put_contents() ...

I'm still interested to learn why you want to do this. Not so interested where the idea came from ...
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@aj_nscApr 25.2011 — The OP doesn't want to say svidgen because he's obviously up to some ethically questionable business - at least that's what I gathered from the hackforums.net reference.
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@rproctor83Apr 25.2011 — Developing any type of malicious code, phishing software or anything of the like is prohibited and hopefully no community member will help further the ongoing battle that we have against such unethical procedures. It's one thing to hack a script to make it do what you want, but its another to develop a hack to infringe on someones privacy, rights and or intent.
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@dalecospApr 25.2011 — The OP doesn't want to say svidgen because he's obviously up to some ethically questionable business - at least that's what I gathered from the hackforums.net reference.[/QUOTE]+1. :eek:
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@linkskuauthorApr 26.2011 — Nevermind then, I know discussing anything malicious isn't allowed here, I'll use Google and work on my script. The folks over at HackForums aren't good with PHP ?
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@aj_nscApr 26.2011 — Shocks me why you'd even ask.....not because of the malicious intent of it, but because it takes about 1 minutes to write a script on your local server and find out the answer.
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@dalecospApr 26.2011 — Shocks me why you'd even ask.....not because of the malicious intent of it, but because it takes about 1 minutes to write a script on your local server and find out the answer.[/QUOTE]And that's true, also.

I do think that sometimes we're either just tired or need some "human" interaction for some other reason, so we post in a community rather than expend the energy needed to DIY.
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@aj_nscApr 26.2011 — And that's true, also.

I do think that sometimes we're either just tired or need some "human" interaction for some other reason, so we post in a community rather than expend the energy needed to DIY.[/QUOTE]

I strongly second that.
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