Problem with preg_replace() since upgrade to php7/mysql5.7

197 Posts

jonahnaylor Reply #1, 9 years, 11 months ago

Hi I unfortunately had to upgrade my server but my Evolution 1.1 site is now showing Jot errors:

ErrorType[num] 	WARNING[2]
File 	/home/public_html/assets/snippets/jot/includes/phx.parser.class.inc.php
Line 	254
Source 	$output = preg_replace("~(\b\w+\b)~e","wordwrap('\\1',\$wrapat,' ',1)",$output);
Current Snippet 	Jot

Error : preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead

Any easy way to fix this?

This question has been answered by multiple community members. See the first response.

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discuss.answer

110 Posts

vigilante Reply #2, 9 years, 11 months ago

You'll have to fix the code yourself!
Everything you need is there.
Change `preg_replace` to `preg_replace_callback`.
Then remove the `e` from the regex.
Then move the "wordwrap" portion into an anonymous function and `return` the text.

Basically it needs to look something like this:

```
$output = preg_replace_callback("~(\b\w+\b)~", function($matches) { return wordwrap($matches[0], $wrapat, ' ', 1) }, $output);
```

The middle is just a callback function, whatever you `return` will be set to $output. There is no eval, so that's ok, it's just looking for the first match which will be `$matches[0]` in the returned matches array.

I can't test this but it should be good, or close!

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953 Posts

iusemodx Reply #3, 9 years, 11 months ago

May I suggest you post this on GitHub, the EVO DEV team look there first, they are hardly on the forum

Download the latest Evo release
Report an issue about Evo
Read the Evo documentation

197 Posts

jonahnaylor Reply #4, 9 years, 11 months ago

Hi thanks Vigilante,

I updated the line on 254 to your suggestion:

$output = preg_replace_callback("~(\b\w+\b)~", function($matches) { return wordwrap($matches[0], $wrapat, ' ', 1); }, $output);

which got me a bit further. I also posted on Github for extra help there, but now I'm faced with more errors:

DocumentParser->executeParser()
index.php on line 145
DocumentParser->prepareResponse()
manager/includes/document.parser.class.inc.php on line 1803
DocumentParser->outputContent()
manager/includes/document.parser.class.inc.php on line 1906
DocumentParser->parseDocumentSource(string $var1)
manager/includes/document.parser.class.inc.php on line 634
DocumentParser->evalSnippets(string $var1)
manager/includes/document.parser.class.inc.php on line 1655
DocumentParser->_get_snip_result(string $var1)
manager/includes/document.parser.class.inc.php on line 1172
DocumentParser->evalSnippet(string $var1, array $var2)
manager/includes/document.parser.class.inc.php on line 1195
eval()
manager/includes/document.parser.class.inc.php on line 1120
CJot->Run()
manager/includes/document.parser.class.inc.php(1120) : eval()'d code on line 60
CJot->getOutputDefault()
assets/snippets/jot/jot.class.inc.php on line 305
CJot->getOutputComments()
assets/snippets/jot/jot.class.inc.php on line 357
CChunkie->Render()
assets/snippets/jot/jot.class.inc.php on line 444
PHxParser->Parse(string $var1)
assets/snippets/jot/includes/chunkie.class.inc.php on line 57
PHxParser->ParseValues(string $var1)
assets/snippets/jot/includes/phx.parser.class.inc.php on line 60
PHxParser->Filter(string $var1, ':wordwrap:esc:nl2br')
assets/snippets/jot/includes/phx.parser.class.inc.php on line 165
preg_replace_callback('~(\b\w+\b)~', Closure $var2, string $var3)
assets/snippets/jot/includes/phx.parser.class.inc.php on line 254
PHxParser->{closure}(array $var1)
on line
wordwrap('We', NULL, ' ', 1)
assets/snippets/jot/includes/phx.parser.class.inc.php on line 254

[ed. note: jonahnaylor last edited this post 9 years, 11 months ago.]

Yorkshire UK based hosting provider: https://www.simulant.uk

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197 Posts

jonahnaylor Reply #5, 9 years, 11 months ago

The guys on Github are pretty awesome too!! Thanks to Vigilante & Deesen we have a fix:

https://github.com/modxcms/evolution/issues/716

Yorkshire UK based hosting provider: https://www.simulant.uk

Answered Problem with preg_replace() since upgrade to php7/mysql5.7