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PHP

Darrell Conklin
Darrell Conklin
22,377 Points
Posted by Darrell Conklin
Darrell Conklin
22,377 Points

Find part of a string inside of a variable.

I'm trying to find a function that will check / search for a value inside of a string inside of a variable. Similar to in_array().

Darrell Conklin
Darrell Conklin
22,377 Points
Darrell Conklin
Darrell Conklin
22,377 Points

If it even exists and if not then how would I go about doing something like that.

1 Answer

Matthew Carson
Matthew Carson
5,965 Points

Do you mean like strpos()?

It returns the index of a searched string, or false if the searched string isn't found.

Say I wanted to find 'York' inside of 'New York'

<?php
$string = 'New York';
$find = 'York';

strpos($string, $find); // Would return 4

echo strpos($string, $find) ? 'Found it!' : 'Did not find it.'; // Would echo 'Found it!'

strpos

Is this what you mean?

Darrell Conklin
Darrell Conklin
22,377 Points
Darrell Conklin
Darrell Conklin
22,377 Points

Yes that is what I was wanting to do.

Darrell Conklin
Darrell Conklin
22,377 Points
Darrell Conklin
Darrell Conklin
22,377 Points

I ended up doing something like this:

<?php

$find = "Full DOB available and matched input";
$test = strpos($response, $find);

if ($test) {
    echo "You have passed age verification.";
} else {
    echo "You have failed age verification";
}

?>

I don't really understand what is going on here:

<?php

echo strpos($string, $find) ? 'Found it!' : 'Did not find it.'; // Would echo 'Found it!'

?>

I'm assuming that is some shorthand syntax for testing if the expression is true?