PHP function to find string within a string from array of strings

[dagnasty]

I've seen it before, I just cannot remember the function.

say I have an array of words:

cat
dog
fish
bucket
cheese
wheel

and am looking in a bigger string to see if any of them exist (not case sensitive) within a string:

"the monkey jumped from the bucket"

What was that function name? Thanks.

[zq29]

I can't think of [i]just one[/i] function that does this, I know a handfull exist for replacements, but not searches, well, none come to mind. YOu could do it like this though:
[code]<?php
$words = array("cat","dog","fish","bucket","cheese","wheel");
$str = "the monkey jumped from the bucket";
$found = array();
foreach($words as $w) {
    if(stripos($str,$w) !== FALSE) $found[] = $w;
}
?>[/code]

[dagnasty]

undefined function stripos(); :(

My guess is that this function is only for PHP 5?

Do I have an alternative function to use?

[dagnasty]

strpos(strtolower($str))

nevermind I'll settle with this.

[wildteen88]

stripos is a PHP5 only function, you must be using PHP4 or lower. So you'll have to use strpos

[Barand]

Alternatively, if you convert the sentence to an array of words

[code]<?php
$words = array ('cat','dog','fish','bucket','cheese','wheel');
$words2 = explode(' ', strtolower("the monkey jumped from the bucket"));
$found = array_intersect($words, $words2);

// view results
echo '<pre>', print_r($found, true), '</pre>';
?>
[/code]

[zq29]

[quote author=Barand link=topic=101778.msg403339#msg403339 date=1153852857]
Alternatively, if you convert the sentence to an array of words

[code]<?php
$words = array ('cat','dog','fish','bucket','cheese','wheel');
$words2 = explode(' ', strtolower("the monkey jumped from the bucket"));
$found = array_intersect($words, $words2);

// view results
echo '<pre>', print_r($found, true), '</pre>';
?>
[/code]
[/quote]Yeah, that was one of the other ways I was thinking too. If you go about it this way you'll have to strip out any punctuation if it's present in your actual data though...

[Barand]

Good point