[SOLVED] Save variable in php file

[FlyingIsFun1217]

Hey!

 

What I'm wondering is how (or if there is a way) to save a variable into a php file. For example, let's say a php file is as such:

 

<?php
    $varToEdit = "";
?>

 

Now, what would I have to do to make the file end up looking like this:

 

<?php
    $varToEdit = "newsavedvalue";
?>

 

Thanks again for your help!

FlyingIsFun1217

[chigley]

If you're in PHP 5, you can use file_put_contents().

If not, fopen() and fwrite() will do the job.

 

[FlyingIsFun1217]

Alright, thanks for the tips

 

FlyingIsFun1217

[FlyingIsFun1217]

Alright, I'm reviving a dead topic I know, but I think I've got it done, and I want to make sure while I wait for my server to come back online.

 

<?php
echo '<center>';
	echo '<h1><u>Edit Access Password</u></h1>';

	echo '<form action="changePassword.php" method="post">';
		echo 'Enter in a new access password:';
		echo '<br>';
		echo '<input type="password" name="newPassword1" style="width: 25%;">';
		echo '<br>';
		echo '<br>';
		echo 'Enter in new access password again:';
		echo '<br>';
		echo '<input type="password" name="newPassword2" style="width: 25%;">';
		echo '<br>';
		echo '<br>';
		echo 'Enter old access password:';
		echo '<br>';
		echo '<input type="password" name="oldPassword" style="width: 20%;">';
		echo '<input type="submit" value="Change" style="width: 5%;">';
	echo '</form>';
echo '</center>';
?>

 

<?php
include('fakerPassword.php');

$firstNewPassword = $_POST['newPassword1'];
$secondNewPassword = $_POST['newPassword2'];
$enteredOldPassword = $_POST['oldPassword'];

if($firstNewPassword == $secondOldPassword)
{
	if(md5($enteredOldPassword) == $encryptedPass)
	{
		$inputFileContents = fread('fakerPassword.php');
		$lengthOfOld = strlen($enteredOldPassword);
		$oldPassPosition = strpos($inputFileContents, $enteredOldPassword);

		//Now we have a new updated file content variable, holding all text needed to be written to new file...
		substr_replace($inputFileContents, $firstNewPassword, $oldPassPosition, $lengthOfOld);

		$newOpenPointer = fopen('fakerPassword.php','w');

		if(fwrite($newOpenPointer, $inputFileContents))
		{
			echo '<center>';
				echo 'Access password successfully changed!';
				echo '<br>';
				echo '<a href="javascript:history.go(-1)">Return to "Password Edit" form</a>.';
			echo '</center>';

			fclose($newOpenPointer);
		}

		else
		{
			echo '<center>';
				echo 'ERROR! Password not changed!';
				echo '<br>';
				echo 'MAKE SURE THAT "password.php" STILL EXISTS ON THE SERVER! THIS FILE IS VITAL TO THE SYSTEM!';
			echo '</center>';
		}
	}

	else
	{
		echo '<center>';
			echo 'ERROR! One or more of the passwords entered were invalid!';
			echo '<br>';
			echo '<a href="javascript:history.go(-1)">Go back and try again</a>.';
		echo '</center>';
}

else
{
	echo '<center>';
		echo 'ERROR! Different new password(s) entered!';
		echo '<br>';
		echo '<a href="javascript:history.go(-1)">Go back and try again</a>.';
	echo '</center>';
}
?>

 

Anything in here that would render it lame? I know that there is the unsafe practice of opening and clearing the file (I think it does anyway), but it's alright for now as long as it works.

 

Thanks!

FlyingIsFun1217

[FlyingIsFun1217]

After echo-ing some of the variables ($inputFileContents and $oldPassPosition [which relies on the first]), that the file isn't being read quite the way I want it to. Basically, if the file consists of "hello World!", I want to have echo $inputFileContents; to give me 'hello World!'. Is this not what fread does?

 

Thanks!

FlyingIsFun1217

[FlyingIsFun1217]

Does anybody know how I can go about copying the contents of a file into memory (a variable)?

 

Thanks!

FlyingIsFun1217

[DarkWater]

$file = file_get_contents("test.txt");

[FlyingIsFun1217]

Yeah, I saw that right afterward, but it seems that I'm still not getting the desired results. The substr_replace result is just giving me what I previously had.

 

$inputFileContents = file_get_contents('fakerPassword.php');
		echo 'Input: '.$inputFileContents;
		$lengthOfOld = strlen($enteredOldPassword);
		echo 'Old Password Length: '.$lengthOfOld;
		$oldPassPosition = strpos($inputFileContents, $enteredOldPassword);
		echo 'Position in file of old password: '.$oldPassPosition;

		//Now we have a new updated file content variable, holding all text needed to be written to new file...
		substr_replace($inputFileContents, $firstNewPassword, $oldPassPosition, $lengthOfOld);

		$newOpenPointer = fopen('fakerPassword.php','w');

		if(fwrite($newOpenPointer, $inputFileContents))
		{
			echo '<center>';
				echo 'Access password successfully changed!';
				echo '<br>';
				echo '<a href="javascript:history.go(-1)">Return to "Password Edit" form</a>.';
			echo '</center>';

			fclose($newOpenPointer);
		}

		else
		{
			echo '<center>';
				echo 'ERROR! Password not changed!';
				echo '<br>';
				echo 'MAKE SURE THAT "password.php" STILL EXISTS ON THE SERVER! THIS FILE IS VITAL TO THE SYSTEM!';
			echo '</center>';
		}
	}

 

I'm a little new to the whole file editing thing, so I'm probably missing something really simple :/

 

FlyingIsFun1217

[FlyingIsFun1217]

Bump.

 

I'll be at my last day of school for the year today, so if anybody wants to bug hunt... or point out some stupid error of mine (I'm sure...), feel free

 

Thanks so much!

FlyingIsFun1217

[FlyingIsFun1217]

Does anybody know why the above code does not output the new value? Is there actually a much more simplistic way of going about this approach?

 

Thanks!

FlyingIsFun1217

[FlyingIsFun1217]

Alright, seems I've got it working; all I needed to do was assign substr_replace to a new variable.

 

Thanks for your help guys!

FlyingIsFun1217