CODEWITHSUNDEEP
phparraysstring
ndelucca
ndelucca

Reputation: 557

PHP Find Substring inside String Array

I have the following array:

$historicalFullList = ['Fecha','H-kWH-Total','H-kWH-Pico','H-kWH-Resto','H-kWH-Valle','H-Acum-Pico','H-Acum-Resto','H-Acum-Valle','H-Fecha-Pico','H-Fecha-Resto','H-Fecha-Valle','H-kW-Pico','H-kW-Resto','H-kW-Valle','H-kVARH-Total','error','factMult','H-kW-Pico-C','H-kW-Resto-C','H-kW-Valle-C'];

I want to create a function to find if the substring 'H-k' exists in the array. (in this example array it should return TRUE)

For some reason the following code doesn't work. Is there a better way to do this?

function test($substring, $array){

    foreach ($array as $item){
        if (strpos($substring, $item)!== false){
            return true;
        }else{
            return false;
        }
    }
}

then called it..

if (test('H-k',$historicalFullList)){
    do stuff...
}

Upvotes: 2

Views: 2934

Answers (1)

Maarten van Middelaar
Maarten van Middelaar

Reputation: 1721

move your return false out of the foreach, else it will return false after the first comparison if it doesn't contain $substr.

function test($substring, $array){
    foreach ($array as $item){
        if (strpos($item,$substring)!== false){
            return true;
        }
    }
    return false;       
}

Also, swap the needle and the haystack for strpos.

Upvotes: 7

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