PHP - Search in specific array value

Question

I want to Search in Array value by in_array Function and For loop. My code:

$input = "a";
$arrays = array("cdf","abs","tgf");

$counter = count($arrays);

for ($i=0; $i<$counter; $i++){

    if(in_array($input,$arrays) !== true){
        echo "Found <br>";
    } else {
        echo "Not Found";
    }

}

Output:

Not Found
Found
Not Found

But, if(in_array($input,$arrays[$i]) !== true) not working.

Cobra_Fast · Accepted Answer · 2018-09-12 18:14:41Z

2

The reason in_array("a", "cdf"), which is what in_array($input, $arrays[$i]) could become, isn't working is because "cdf" isn't an array.

Are you trying to find array elements in $arrays that contain the letter a?
In that case you should search array elements with strpos() to determine if a string contains another string. You can also use foreach instead of for if iterating over the array is all you want to do.

$input = "a";
$arrays = array("cdf","abs","tgf");

foreach ($arrays as $key => $value)
{
    if (strpos($value, $input) !== false)
        echo "Found in $key<br>";
    else
        echo "Not Found<br>";
}

answered Sep 12, 2018 at 18:14

Cobra_Fast

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2 Comments

Wilson Over a year ago

Thanks, You say "cdf" isn't an array. You mean in_array only worked for all array() value and can't use for specific value ?

Cobra_Fast Over a year ago

Read the manual for in_array(), it checks if a specific element is in an array, not part of a string which is in an array.

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