How can a PHP script check if a value is in an array? I want it to check if a password input is equal to those in an array.
e.g. if $input == "pass1" or "pass2" or "pass3"
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5 Answers
from php manual:
bool in_array ( mixed $needle , array $haystack [, bool $strict = FALSE ] ) Searches haystack for needle using loose comparison unless strict is set.
if(in_array($input, $somearray)){ .. }
Comments
The PHP function for checking if a variable is in an array is in_array.
Like this:
if (in_array($input, array("pass1", "pass2", "pass3")) {
// do something
}
answered Apr 3, 2012 at 22:03
Benjamin Crouzier
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Comments
Pretty much copying what Marc B stated in his comment, the example code is
<?php
$os = array("Mac", "NT", "Irix", "Linux");
if (in_array("Irix", $os)) {
echo "Got Irix";
}
if (in_array("mac", $os)) {
echo "Got mac";
}
?>
And in this example the second if would fail because "mac" is not contained in the array.
Comments
There's a couple methods. in_array is one, and foreach is another. I don't know which is faster, but here's how you'd do it with foreach:
foreach ($array as $a) {
if ($a == "correct password") {
//do something
}
}
1 Comment
Basti
Bet on
in_array. Not sure why you would use foreach here.Here's another way,
if(count(array_intersect(array($input), array("pass1", "pass2", "pass3"))) > 0){
//do stuff
}
