Why ! str_replace

[egturnkey]

Hello friends,

 

If we have link

 

$x = "search engin";
<a href="google.com"><?=$x?></a>

 

and we want to remove space btween (search engine) to be (search-engine)

 

ineed we should use str_replace

and we change the link to

 

$manal = str_replace(" ", "-", trim($x));
<a href="google.com"><?=$manal?></a>

 

It not working ? and only working if

 

$manal = str_replace(" ", "+", trim($x));

 

why + not - ? and is there anyway else to replce space to - ?

 

thanks

[BlueSkyIS]

works fine for me

 

<?php
$x = "search engin";
$manal = str_replace(" ", "-", trim($x));
?>
<a href="google.com"><?php echo $manal; ?></a>

[egturnkey]

i found the reason !

 

my example above it very simple but the real one has

 

keyword-ID

and if the keywords = x y z

and i replace space with - so the link will be

x-y-z-ID <-- works

 

but for .htaccess

 

RewriteRule -(.*)\.htm view.php?id=$1 <--- will not work

RewriteRule _(.*)\.htm view.php?id=$1 <--- will work

so the link will be

x-y-z_ID <--- Fine enough 

 

Now another quetions please what for multi-str replace

 

i mean if i've

 

$x= "I love?world";

i want replce both spaces and ? with - so it be

I-love-world

 

r_replace(array(" ","?"), "-", trim($x)); <-- it is right