Javascript & PHP Xor Equivalent

I have a javascript code: var c = 267414715; var d = c ^ ('0x81BE16CD'); Result is -1907459466 http://jsfiddle.net/4N3JY/1/ I can't seem to get a PHP equivalent. Have tried the fo

Solution 1:

2387507830 == -1907459466 when using unsigned integers (look at the bit values of the least significant bits)

2387507830 = 0000 0000 0000 0000 0000 0000 0000 0000 1000 1110 0100 1110 0111 1010 0111 0110 -1907459466= 1111 1111 1111 1111 1111 1111 1111 1111 1000 1110 0100 1110 0111 1010 0111 0110

your problem is a 32 bit roll over. To compensate you can simply & 0xffffffff which will 0 out the most significant 32 bits, and make both answers the same.