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branches/2.6/wp-includes/pluggable.php
r8749 r8582 1290 1290 $password = ''; 1291 1291 for ( $i = 0; $i < $length; $i++ ) 1292 $password .= substr($chars, wp_rand(0, strlen($chars) - 1), 1);1292 $password .= substr($chars, mt_rand(0, strlen($chars) - 1), 1); 1293 1293 return $password; 1294 }1295 endif;1296 1297 if ( !function_exists('wp_rand') ) :1298 /**1299 * Generates a random number1300 *1301 * @since 2.6.21302 *1303 * @param int $min Lower limit for the generated number (optional, default is 0)1304 * @param int $max Upper limit for the generated number (optional, default is 4294967295)1305 * @return int A random number between min and max1306 */1307 function wp_rand( $min = 0, $max = 0 ) {1308 global $rnd_value;1309 1310 $seed = get_option('random_seed');1311 1312 // Reset $rnd_value after 14 uses1313 // 32(md5) + 40(sha1) + 40(sha1) / 8 = 14 random numbers from $rnd_value1314 if ( strlen($rnd_value) < 8 ) {1315 $rnd_value = md5( uniqid(microtime() . mt_rand(), true ) . $seed );1316 $rnd_value .= sha1($rnd_value);1317 $rnd_value .= sha1($rnd_value . $seed);1318 $seed = md5($seed . $rnd_value);1319 update_option('random_seed', $seed);1320 }1321 1322 // Take the first 8 digits for our value1323 $value = substr($rnd_value, 0, 8);1324 1325 // Strip the first eight, leaving the remainder for the next call to wp_rand().1326 $rnd_value = substr($rnd_value, 8);1327 1328 $value = abs(hexdec($value));1329 1330 // Reduce the value to be within the min - max range1331 // 4294967295 = 0xffffffff = max random number1332 if ( $max != 0 )1333 $value = $min + (($max - $min + 1) * ($value / (4294967295 + 1)));1334 1335 return abs(intval($value));1336 1294 } 1337 1295 endif;
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