stristr: check for several possibilities?

[encyclo]

I'm using

stristr

for a really simple check of a string to see if it contains the text "foo". I think I'm missing something obvious, but how can I check to see whether a string contains either "foo", "bar" or "baz"? I tried pipes but that doesn't seem to work. Can I use

stristr

or is there another function I've overlooked?

Thanks for your help!

[keno]

Have you looked at the examples below?

I'm a C guy - somebody pointed this out to me before...

[us2.php.net...]

Edit Add:
Sorry, I think I answered the wrong question. I didn't read your headline.

In C you could look for the string in three seperate lines using if/else.

[encyclo]

Thanks keno, I have it set up already as three different

stristr

blocks with if, else if, else if, but it seems just so overcomplicated - I was hoping that there was a function which could just check the string once and look for one of three (or more) possibilities. Something like

foo¦bar¦baz

.

[coopster]

I'd go with a preg_match() [php.net]. Also, I have noticed lately with PHP5 that regular expressions are often outperforming some of the string functions that the PHP documentation say are faster.

<added>
I just realized you were using stristr() and I was thinking stripos(). stripos() is a PHP5 function, that is why I commented on the performance. Still, a preg_match is going to work well here for you.
</added>

<pre> 
<?php 
$strings = array( 
'this string', 
"this\nstring\n", 
"thisfoostring", 
"this\nbaz\nstring", 
"this foo bar baz string", 
"this bazstring" 
); 
foreach ($strings as $string) { 
 if (preg_match_all("/foo¦bar¦baz/is", $string, $matches)) { 
  print htmlentities($string) . "\n"; 
  print_r($matches); 
  print "\n\n"; 
 } 
} 
?> 
</pre>