Warning: preg_replace(): No ending delimiter '/' found

[PatRoy]

Hello, 

I'm sure my error isn't much, but I can't seem to remove part of a string... 

This is an example string:

Stack trace: 
#0 /mnt/HD/HD_a2/DATA/WWW/html/calchom/include/CorbeauPerdu/Database/DBWrapperStatement.php(525): CorbeauPerdu\Database\DBWrapperStatement->_stmtCommitOnEachExec_HOTFIX()
#1 /mnt/HD/HD_a2/DATA/WWW/html/calchom/include/CorbeauPerdu/Database/DBWrapperStatement.php(378): CorbeauPerdu\Database\DBWrapperStatement->_runMultiStatement(true)
#2 /mnt/HD/HD_a2/DATA/WWW/html/calchom/include/CorbeauPerdu/Database/DBWrapper.php(773): CorbeauPerdu\Database\DBWrapperStatement->runStatement(false, true)
#3 /mnt/HD/HD_a2/DATA/WWW/html/calchom/include/CorbeauPerdu/Database/DBWrapper.php(708): CorbeauPerdu\Database\DBWrapper->_storeDataEXE('INSERT INTO tbl...', Array, Array, true)
#4 /mnt/HD/HD_a2/DATA/WWW/html/calchom/test.php(112): CorbeauPerdu\Database\DBWrapper->storeData('INSERT INTO tbl...', Array, Array, true, true)
#5 {main}

I want to remove, in this case, all instances of "CorbeauPerdu\Database\" . These could be other words of course...

I tried the following regex in preg_replace(), which seems to work if I test in http://regex101.com/, but doesn't seem to work at all:

$pattern = "/\w+\\\w+\\/";
echo "Fixed = ".preg_replace($pattern, "", $str);

On top of that, my error log keeps telling me:

Warning: preg_replace(): No ending delimiter '/' found ...

Any ideas on what I'm doing wrong here? Much thanks

Pat

 

Edited March 9, 2020 by PatRoy

[requinix]

regex101.com doesn't know that you're trying to put the regex into a PHP string.

Escape the backslashes.

[PatRoy]

3 hours ago, requinix said:

regex101.com doesn't know that you're trying to put the regex into a PHP string.

Escape the backslashes.

Thanks. I had to escape 3 times the backslach afterall :  preg_replace("/\w+\\\/", "", $str);

Cheers for your help

[requinix]

The basic process is, if you want literal backslashes in a regex then you need to double it to make PCRE happy, then double it again to make PHP happy.