Check if word exist

[ankur0101]

Hi,

I am really bad when it comes to Regex. Every time, when I need to do things with it, I get confuse.

I want to find a word called hello in a variable. something like,

$word = "hello";

$target = "hello_guys_howz_life";

Using preg_match, how can I check whether hello word exist in variable $target ?

 

Thanks

Edited September 19, 2013 by ankur0101

[cataiin]

if(strpos($target, $word) !== false)

{

    echo "Exists.";

}

else

{

    echo "Nop.";

}

[cataiin]

with preg_match:

if(preg_match("/$word/", $target))
{
    echo "Exists.";
}
else
{
    echo "Nop.";
}

sorry but then I saw you want with preg_match.

[AbraCadaver]

with preg_match:

if(preg_match("/$word/", $target))
{
    echo "Exists.";
}
else
{
    echo "Nop.";
}

sorry but then I saw you want with preg_match.

 

Yes, but try and steer him in the direction of not using regex if it is not needed. As you know strpos() will be much faster than preg.

[Irate]

Regular expressions are particularly useful for matching patterns, where a normal string function would utterly fail, whereas simple tests for words you already know you want to search for, strpos is the way to go.

[.josh]

I think saying something would "utterly fail" at something it isn't designed to do in the first place is being a bit harsh and misleading. It's like saying a fish would utterly fail at flying. Well it's not built for the sky in the first place, so if anything is failing, it's your own expectations and/or understanding of it.