PHP array_search bug?

Question

I was trying to find a value in a multi-array variable. It took too much time to find where was my bug...

Try this code:

$aa = array("nombre" => "HOLA", "v" => 0);
$bb = array("nombre" => "HOLB", "v" => 0);
$cc = array("nombre" => "HOLC", "v" => 0);
$dd = array($aa,$bb,$cc);

if (in_array("HOLA",array_column($dd,"nombre")))
     echo "in_array = yes";
else
     echo "in_array = no";

echo "<br>";

if (array_search("HOLA",array_column($dd,"nombre")))
     echo "array_search = yes";
else
     echo "array_search = no";

the answer I get is:

in_array = yes
array_search = no

It is this a supposed behavior?

Answer 1

Yes. The documentation for array_search states the following:

Warning: This function may return Boolean FALSE, but may also return a non-Boolean value which evaluates to FALSE. Please read the section on Booleans for more information. Use the === operator for testing the return value of this function.

The value you are getting is 0 , which is failing your if , but is the correct answer.

Answer 2

array_sarch will return the index at which it finds the result, so in your case 'HOLA' is at the 0 index which makes the condition fail. You should check it like this

if (array_search("HOLA",array_column($dd,"nombre")) !== false)