PHP If First Word Equals


I was wondering what would be the most efficient way of finding and testing against the first word (including first white space) within a string.

So say i had a variable $a that equaled something like 'P001 example word'. If i wanted to test this true or false based on whether 'P001 ' was found and first word in the string, what would be the best way of doing so?

Any help would be appreciated.

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Ryan ChongBusiness Systems Analyst , ex-Senior Application EngineerCommented:
try use Explode function:

$a= "P001 example word";
$arr = explode(" ", $a);
echo $arr[0]; // P001
if ("P001"==$arr[0]) {
    echo "<br>true";
} else {
    echo "<br>false";

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