PHP if string exist in array

Question

I'm having issues checking if the string exist in array after splitting a single string into array by comma. it keeps returning false here my code. Can someone tell me what I'm doing wrong in my code?

<?php

$myString = "10.0.0.1 , IP: 10.0.0.2 Date: 05/07/2017 , IP: 10.0.0.3 Date: 05/07/2017";
$IPS = explode(' , ', $myString); 
$string = "10.0.0.2 Date: 05/07/2017";

foreach ($IPS as $IP) 
{
if(in_array($string, $IP))
    {
        die('YES');
    }
    else
    {
        die('NO'); // keeps returning no when the $string is in the array.

    }
}

?>

Your array is $IPS, not $IP. $IP is the string of each element in the array. — Qirel
– Qirel, Commented May 7, 2017 at 13:20
10.0.0.2 Date: 05/07/2017 doesn't exist. It's IP: 10.0.0.2 Date: 05/07/2017 that does (you missed the leading IP: ). in_array() matches the full values, not partials. — M. Eriksson
– M. Eriksson, Commented May 7, 2017 at 13:20
And as you die, you will never move after first element of array. — u_mulder
– u_mulder, Commented May 7, 2017 at 13:23

LF-DevJourney · Accepted Answer · 2017-05-07 13:37:33Z

2

There are two error with your code. First $IP is string not array, so your is_array is not appropriate. Second when the first element not have $string the process with exit with die("NO"), then the remain code will not execute.

Check the live demo.

<?php

$myString = "10.0.0.1 , IP: 10.0.0.2 Date: 05/07/2017 , IP: 10.0.0.3 Date: 05/07/2017";
$IPS = explode(' , ', $myString); 
$string = "10.0.0.2 Date: 05/07/2017";

foreach ($IPS as $IP) 
{
if(strpos($IP, $string) !== FALSE)
    {
        die('YES');
    }
}
die('NO');

answered May 7, 2017 at 13:37

LF-DevJourney

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Comments

Ahmad Hajjar · Accepted Answer · 2017-05-07 13:30:31Z

1

Maybe you want to use strpos instead of looping through the array

<?php

$myString = "10.0.0.1 , IP: 10.0.0.2 Date: 05/07/2017 , IP: 10.0.0.3 Date: 05/07/2017";
$string = "10.0.0.2 Date: 05/07/2017";

if(strpos($myString, $string))
    {
        die('YES');
    }
    else
    {
        die('NO');
    } 

?>

answered May 7, 2017 at 13:30

Ahmad Hajjar

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