PHP String converted to boolean

string_to_1_or_0_example.php

<?php


$stringToBool = (preg_match('/yes|true|(?<!-)[1-9]/i', $value)) ?: 0;


$value = ["yes","1","true","0","false","no",1,"NO","No","YES","Yes",false,true,"no",-1,0,6 ];


foreach ($value as $v) {
    echo "$v is " . ((preg_match('/yes|true|(?<!\-)[1-9]/i', $v)) ?: 0) . "<br>";
}

/**
yes is 1
1 is 1
true is 1
0 is 0
false is 0
no is 0
1 is 1
NO is 0
No is 0
YES is 1
Yes is 1
is 0 // (bool) false is 0
1 is 1 // (bool) true is 1
no is 0
-1 is 0
0 is 0
6 is 1
 */