Quirks.php

<?php
// Loose comparison
if (0 == false) {
    echo "0 equals false";
} else {
    echo "0 does not equal false";
}
// Output: "0 equals false"

// Type juggling
$x = "10";
$y = $x + 5;
echo $y;
// Output: 15

// Inconsistent function naming
$string = "Hello, world!";
$reversed = strrev($string);
echo $reversed;
// Output: "!dlrow ,olleH"