Question

How to check if an array contains only integers in PHP

Answer 1

$arr = array(1, 2, 3, 4, 5, 6, 7);

if (array_filter($arr, 'is_int') === $arr) {
    echo "yes";
}
else {
    echo "no";
}
   
    
/*
run:
     
yes
     
*/

 

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