CODEWITHSUNDEEP
phpstring
Ross
Ross

Reputation: 173

Strip Characters from PHP String

I have this string:

An error page was displayed to the Web Services user.\nDetails: The Status you have chosen is invalid.\n\nStack Trace: Stack trace:

The string itself actually goes on and on for about another ~1000 characters. What I want to do is extract what's between Details: and \n\Stack. I'd end up with The Status you have chosen is invalid.

I think I have the preceding character removal using substr:

<?php
$error = "An error page was displayed to the Web Services user.\nDetails: The Status you have chosen is invalid.\n\nStack Trace: Stack trace:.........";
$error2 = substr($error, 63);
echo $error2;
?>

But I always get an error syntax error, unexpected end of file. I figured out that it's the \n and \n\ that are throwing that error, but I have no control over those as they are returned to my script from an external API call. I've only defined the $error here for illustrative purposes. This error is present even if I just echo $error not just $error2.

I've seen that I can do something like $short = substr($str, 0, strpos( $str, ' - Name:')); for the trailing character removal, but I need to get the preceding working before I can do that.

Any advice appreciated!

Edit: I mentioned this in a comment, but the error string gets passed to my script from the API by $error = $e->getMessage();.

Upvotes: 0

Views: 60

Answers (1)

user1864610
user1864610

Reputation:

Use a regex with the m and s modifiers so that you can match newlines:

<?php
$error = "An error page was displayed to the Web Services user.\nDetails: The Status you have chosen is invalid.\n\nStack Trace: Stack trace:.........";

$result = preg_match("/^.*Details:\s(.*?)\n*Stack/ms", $error, $matches);
$errora = $matches[1];
echo $errora;
?>

Upvotes: 1

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