[SOLVED] Search and Replace in String

[the_oliver]

Hello,

 

Im using the following to search for charictors in a string that are causing problems, and placing a \ infrount of them.  Im trying to do it using:

 

<?php
$str = "string's";
$invalied_chars = array(" ", "'");
$result = str_replace($invalied_chars, "\\", $str);
echo $result;
?>

 

The bit im confused by was how to keep the old charictor, just proceeding it with a \ rather then replacing it?

 

Thanks

 

 

[ted_chou12]

I believe that would cause an error since $invalied_chars is an array, shoud be like this:

<?php
$str = "string's";
$invalied_chars = array(" ", "'");
$result = $str;
foreach ($invalied_chars as $i) {
$result = str_replace($i, "\\", $result);}
echo $result;
?>

That should work better I think, but I dont understand your question...

Ted

[taith]

nope... str_replace does allow arrays...

 

<?php
$str = "string's";
$invalied_chars = array(" ", "'");
$writein= array("\ ", "\'");
$result = str_replace($invalied_chars, "$writein", $str);
echo $result;
?>

[the_oliver]

Thanks.  Worked well other then with the < charictor.  ( the output i was expecting was \> )

 

Im trying:

$str            = "<";
$invalied_chars = array("<");
$writein        = array("\\<");
$result         = str_replace($invalied_chars, $writein, $str);

echo $result;

 

I also tried:

$writein        = array("\\<");

and got the output \\

 

And

$str            = "<";

and got the output \\\

 

Can any one suggest where im wrong?

 

Thanks!

 

 

EDIT: i cant use < of char() as it will end up being output to create a unix file name, not for web output.

[kenrbnsn]

How are you viewing the results? Via a web browser or directly via the CLI? If you're viewing it via a browser, the "<" character is probably there but is being eaten by the browser because it thinks the character is the start of a tag. Do a "show source" and you will probably see the character in the source.

 

Ken

[the_oliver]

Spot On!  Many Thanks.