Online PHP editor | refs for 3k9R2

@ 2013-11-15T15:33:29Z

<?php
function to_int32($value) {

    $intval = hexdec($value);

    // If 64 bit
    if (PHP_INT_SIZE === 8) {
        return ($intval | ~0x800000000);
    }

    // 32 bit
    return $intval;
}
echo to_int32('c0f672d4');
echo to_int32('83f6234');