php实现十进制转换二进制
- function dec2bin ($dec) {
- $flag = array();
- while ($dec != 0) {
- array_push($flag,$dec%2);
- $dec = (int)$dec/2;
- }
- $binstr = '';
- while (!empty($flag)) {
- $binstr .= array_pop($flag);
- }
- return $binstr;
- }
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