What hashing algorithm should I use?

[akhan]

The PHP function \[code\]hash_algos()\[/code\] gives me this list on my webserver:\[code\][0] => md2[1] => md4[2] => md5[3] => sha1[4] => sha256[5] => sha384[6] => sha512[7] => ripemd128[8] => ripemd160[9] => ripemd256[10] => ripemd320[11] => whirlpool[12] => tiger128,3[13] => tiger160,3[14] => tiger192,3[15] => tiger128,4[16] => tiger160,4[17] => tiger192,4[18] => snefru[19] => gost[20] => adler32[21] => crc32[22] => crc32b[23] => haval128,3[24] => haval160,3[25] => haval192,3[26] => haval224,3[27] => haval256,3[28] => haval128,4[29] => haval160,4[30] => haval192,4[31] => haval224,4[32] => haval256,4[33] => haval128,5[34] => haval160,5[35] => haval192,5[36] => haval224,5[37] => haval256,5\[/code\]Which ones should I use for what and why? Especially, which one should I use for password hashing?