+- CodeIgniter Forums (https://forum.codeigniter.com)
+-- Forum: Archived Discussions (https://forum.codeigniter.com/forumdisplay.php?fid=20)
+--- Forum: Archived Development & Programming (https://forum.codeigniter.com/forumdisplay.php?fid=23)
+--- Thread: match items in an array against text (/showthread.php?tid=17730)
match items in an array against text - El Forum - 04-14-2009
[eluser]matt2012[/eluser]
Ok so I have a large array and a large text to search my aim to create a new array based on what items in the large array are found in the text
so something like
Code:
$myarray = array("apple juice","nice cake","ice cream",...)
$my text = "I like apple juice and ice cream"
foreach ($myarray as $item):
$x = strpos($mytext, $item);
if (strpos !== 0) $newarray[] = $item;
endforeach;given that its a large array and large text this seems inefficient is their a better way to tackle this?
match items in an array against text - El Forum - 04-14-2009
[eluser]GSV Sleeper Service[/eluser]
you may be better off using preg_match_all() http://uk3.php.net/manual/en/function.preg-match-all.php
I expect there's an even neater solution, but I'm not really in the mood for trawling through the php docs!
match items in an array against text - El Forum - 04-14-2009
[eluser]davidbehler[/eluser]
As far as I can tell there is no build-in function that does what you need.
On the strpos - Manual you can find a custom function similar to yours:
Code:
function strposa($haystack ,$needles=array(),$offset=0){
$chr = array();
foreach($needles as $needle){
$chr[] = strpos($haystack,$needle,$offset);
}
if(empty($chr)) return false;
return min($chr);
}