如何通过PHP实现Des加密算法代码实例


Posted in PHP onMay 09, 2020

如何通过PHP实现Des加密算法代码实例

注:php7以上不支持了,因为php7去掉了某些函数, 另外变量的{}要改为[]

<?php
class Des
{
 /**
  * 加密方法
  *
  * @param string $str  需要加密的内容
  * @param string $key  密钥
  * @param bool $toBase64 是否base64
  * return string
  */
    public function encrypt($str, $key, $toBase64=true)
    {
        if ($str == "") {
            return "";
        }
  if ($toBase64) {
   return base64_encode(self::_des($key,$str,1));
  } 
  return self::_des($key,$str,1);
    }
 
 /**
  * 解密方法
  *
  * @param string $str  需要加密的内容
  * @param string $key  密钥
  * @param bool $toBase64 是否base64
  * return string
  */
    public function decrypt($str, $key, $toBase64=true)
    {
        if ($str == "") {
            return "";
        }
  if ($toBase64) {
   return self::_des($key,base64_decode($str),0);
  }
  return self::_des($key,$str,0);
    }
 
    private function _des($key, $message, $encrypt, $mode=0, $iv=null) {
      $spfunction1 = array (0x1010400,0,0x10000,0x1010404,0x1010004,0x10404,0x4,0x10000,0x400,0x1010400,0x1010404,0x400,0x1000404,0x1010004,0x1000000,0x4,0x404,0x1000400,0x1000400,0x10400,0x10400,0x1010000,0x1010000,0x1000404,0x10004,0x1000004,0x1000004,0x10004,0,0x404,0x10404,0x1000000,0x10000,0x1010404,0x4,0x1010000,0x1010400,0x1000000,0x1000000,0x400,0x1010004,0x10000,0x10400,0x1000004,0x400,0x4,0x1000404,0x10404,0x1010404,0x10004,0x1010000,0x1000404,0x1000004,0x404,0x10404,0x1010400,0x404,0x1000400,0x1000400,0,0x10004,0x10400,0,0x1010004);
      $spfunction2 = array (-0x7fef7fe0,-0x7fff8000,0x8000,0x108020,0x100000,0x20,-0x7fefffe0,-0x7fff7fe0,-0x7fffffe0,-0x7fef7fe0,-0x7fef8000,-0x80000000,-0x7fff8000,0x100000,0x20,-0x7fefffe0,0x108000,0x100020,-0x7fff7fe0,0,-0x80000000,0x8000,0x108020,-0x7ff00000,0x100020,-0x7fffffe0,0,0x108000,0x8020,-0x7fef8000,-0x7ff00000,0x8020,0,0x108020,-0x7fefffe0,0x100000,-0x7fff7fe0,-0x7ff00000,-0x7fef8000,0x8000,-0x7ff00000,-0x7fff8000,0x20,-0x7fef7fe0,0x108020,0x20,0x8000,-0x80000000,0x8020,-0x7fef8000,0x100000,-0x7fffffe0,0x100020,-0x7fff7fe0,-0x7fffffe0,0x100020,0x108000,0,-0x7fff8000,0x8020,-0x80000000,-0x7fefffe0,-0x7fef7fe0,0x108000);
      $spfunction3 = array (0x208,0x8020200,0,0x8020008,0x8000200,0,0x20208,0x8000200,0x20008,0x8000008,0x8000008,0x20000,0x8020208,0x20008,0x8020000,0x208,0x8000000,0x8,0x8020200,0x200,0x20200,0x8020000,0x8020008,0x20208,0x8000208,0x20200,0x20000,0x8000208,0x8,0x8020208,0x200,0x8000000,0x8020200,0x8000000,0x20008,0x208,0x20000,0x8020200,0x8000200,0,0x200,0x20008,0x8020208,0x8000200,0x8000008,0x200,0,0x8020008,0x8000208,0x20000,0x8000000,0x8020208,0x8,0x20208,0x20200,0x8000008,0x8020000,0x8000208,0x208,0x8020000,0x20208,0x8,0x8020008,0x20200);
      $spfunction4 = array (0x802001,0x2081,0x2081,0x80,0x802080,0x800081,0x800001,0x2001,0,0x802000,0x802000,0x802081,0x81,0,0x800080,0x800001,0x1,0x2000,0x800000,0x802001,0x80,0x800000,0x2001,0x2080,0x800081,0x1,0x2080,0x800080,0x2000,0x802080,0x802081,0x81,0x800080,0x800001,0x802000,0x802081,0x81,0,0,0x802000,0x2080,0x800080,0x800081,0x1,0x802001,0x2081,0x2081,0x80,0x802081,0x81,0x1,0x2000,0x800001,0x2001,0x802080,0x800081,0x2001,0x2080,0x800000,0x802001,0x80,0x800000,0x2000,0x802080);
      $spfunction5 = array (0x100,0x2080100,0x2080000,0x42000100,0x80000,0x100,0x40000000,0x2080000,0x40080100,0x80000,0x2000100,0x40080100,0x42000100,0x42080000,0x80100,0x40000000,0x2000000,0x40080000,0x40080000,0,0x40000100,0x42080100,0x42080100,0x2000100,0x42080000,0x40000100,0,0x42000000,0x2080100,0x2000000,0x42000000,0x80100,0x80000,0x42000100,0x100,0x2000000,0x40000000,0x2080000,0x42000100,0x40080100,0x2000100,0x40000000,0x42080000,0x2080100,0x40080100,0x100,0x2000000,0x42080000,0x42080100,0x80100,0x42000000,0x42080100,0x2080000,0,0x40080000,0x42000000,0x80100,0x2000100,0x40000100,0x80000,0,0x40080000,0x2080100,0x40000100);
      $spfunction6 = array (0x20000010,0x20400000,0x4000,0x20404010,0x20400000,0x10,0x20404010,0x400000,0x20004000,0x404010,0x400000,0x20000010,0x400010,0x20004000,0x20000000,0x4010,0,0x400010,0x20004010,0x4000,0x404000,0x20004010,0x10,0x20400010,0x20400010,0,0x404010,0x20404000,0x4010,0x404000,0x20404000,0x20000000,0x20004000,0x10,0x20400010,0x404000,0x20404010,0x400000,0x4010,0x20000010,0x400000,0x20004000,0x20000000,0x4010,0x20000010,0x20404010,0x404000,0x20400000,0x404010,0x20404000,0,0x20400010,0x10,0x4000,0x20400000,0x404010,0x4000,0x400010,0x20004010,0,0x20404000,0x20000000,0x400010,0x20004010);
      $spfunction7 = array (0x200000,0x4200002,0x4000802,0,0x800,0x4000802,0x200802,0x4200800,0x4200802,0x200000,0,0x4000002,0x2,0x4000000,0x4200002,0x802,0x4000800,0x200802,0x200002,0x4000800,0x4000002,0x4200000,0x4200800,0x200002,0x4200000,0x800,0x802,0x4200802,0x200800,0x2,0x4000000,0x200800,0x4000000,0x200800,0x200000,0x4000802,0x4000802,0x4200002,0x4200002,0x2,0x200002,0x4000000,0x4000800,0x200000,0x4200800,0x802,0x200802,0x4200800,0x802,0x4000002,0x4200802,0x4200000,0x200800,0,0x2,0x4200802,0,0x200802,0x4200000,0x800,0x4000002,0x4000800,0x800,0x200002);
      $spfunction8 = array (0x10001040,0x1000,0x40000,0x10041040,0x10000000,0x10001040,0x40,0x10000000,0x40040,0x10040000,0x10041040,0x41000,0x10041000,0x41040,0x1000,0x40,0x10040000,0x10000040,0x10001000,0x1040,0x41000,0x40040,0x10040040,0x10041000,0x1040,0,0,0x10040040,0x10000040,0x10001000,0x41040,0x40000,0x41040,0x40000,0x10041000,0x1000,0x40,0x10040040,0x1000,0x41040,0x10001000,0x40,0x10000040,0x10040000,0x10040040,0x10000000,0x40000,0x10001040,0,0x10041040,0x40040,0x10000040,0x10040000,0x10001000,0x10001040,0,0x10041040,0x41000,0x41000,0x1040,0x1040,0x40040,0x10000000,0x10041000);
      $masks = array (4294967295,2147483647,1073741823,536870911,268435455,134217727,67108863,33554431,16777215,8388607,4194303,2097151,1048575,524287,262143,131071,65535,32767,16383,8191,4095,2047,1023,511,255,127,63,31,15,7,3,1,0);
 
      $keys = self::_createKeys ($key);
      $m=0;
      $len = strlen($message);
      $chunk = 0;
 
      $iterations = ((count($keys) == 32) ? 3 : 9);
      if ($iterations == 3) {$looping = (($encrypt) ? array (0, 32, 2) : array (30, -2, -2));}
      else {$looping = (($encrypt) ? array (0, 32, 2, 62, 30, -2, 64, 96, 2) : array (94, 62, -2, 32, 64, 2, 30, -2, -2));}
 
      $message .= (chr(0) . chr(0) . chr(0) . chr(0) . chr(0) . chr(0) . chr(0) . chr(0));
 
      $result = "";
      $tempresult = "";
 
      if ($mode == 1) {
        $cbcleft = (ord($iv[$m++]) << 24) | (ord($iv[$m++]) << 16) | (ord($iv[$m++]) << 8) | ord($iv[$m++]);
        $cbcright = (ord($iv[$m++]) << 24) | (ord($iv[$m++]) << 16) | (ord($iv[$m++]) << 8) | ord($iv[$m++]);
        $m=0;
      }
 
      while ($m < $len) {
        $left = (ord($message[$m++]) << 24) | (ord($message[$m++]) << 16) | (ord($message[$m++]) << 8) | ord($message[$m++]);
        $right = (ord($message[$m++]) << 24) | (ord($message[$m++]) << 16) | (ord($message[$m++]) << 8) | ord($message[$m++]);
 
        if ($mode == 1) {if ($encrypt) {$left ^= $cbcleft; $right ^= $cbcright;} else {$cbcleft2 = $cbcleft; $cbcright2 = $cbcright; $cbcleft = $left; $cbcright = $right;}}
 
        $temp = (($left >> 4 & $masks[4]) ^ $right) & 0x0f0f0f0f; $right ^= $temp; $left ^= ($temp << 4);
        $temp = (($left >> 16 & $masks[16]) ^ $right) & 0x0000ffff; $right ^= $temp; $left ^= ($temp << 16);
        $temp = (($right >> 2 & $masks[2]) ^ $left) & 0x33333333; $left ^= $temp; $right ^= ($temp << 2);
        $temp = (($right >> 8 & $masks[8]) ^ $left) & 0x00ff00ff; $left ^= $temp; $right ^= ($temp << 8);
        $temp = (($left >> 1 & $masks[1]) ^ $right) & 0x55555555; $right ^= $temp; $left ^= ($temp << 1);
 
        $left = (($left << 1) | ($left >> 31 & $masks[31]));
        $right = (($right << 1) | ($right >> 31 & $masks[31]));
 
        for ($j=0; $j<$iterations; $j+=3) {
          $endloop = $looping[$j+1];
          $loopinc = $looping[$j+2];
          for ($i=$looping[$j]; $i!=$endloop; $i+=$loopinc) {
            $right1 = $right ^ $keys[$i];
            $right2 = (($right >> 4 & $masks[4]) | ($right << 28)) ^ $keys[$i+1];
            $temp = $left;
            $left = $right;
            $right = $temp ^ ($spfunction2[($right1 >> 24 & $masks[24]) & 0x3f] | $spfunction4[($right1 >> 16 & $masks[16]) & 0x3f]
                  | $spfunction6[($right1 >>  8 & $masks[8]) & 0x3f] | $spfunction8[$right1 & 0x3f]
                  | $spfunction1[($right2 >> 24 & $masks[24]) & 0x3f] | $spfunction3[($right2 >> 16 & $masks[16]) & 0x3f]
                  | $spfunction5[($right2 >>  8 & $masks[8]) & 0x3f] | $spfunction7[$right2 & 0x3f]);
          }
          $temp = $left; $left = $right; $right = $temp; 
        } 
 
        $left = (($left >> 1 & $masks[1]) | ($left << 31));
        $right = (($right >> 1 & $masks[1]) | ($right << 31));
 
        $temp = (($left >> 1 & $masks[1]) ^ $right) & 0x55555555; $right ^= $temp; $left ^= ($temp << 1);
        $temp = (($right >> 8 & $masks[8]) ^ $left) & 0x00ff00ff; $left ^= $temp; $right ^= ($temp << 8);
        $temp = (($right >> 2 & $masks[2]) ^ $left) & 0x33333333; $left ^= $temp; $right ^= ($temp << 2);
        $temp = (($left >> 16 & $masks[16]) ^ $right) & 0x0000ffff; $right ^= $temp; $left ^= ($temp << 16);
        $temp = (($left >> 4 & $masks[4]) ^ $right) & 0x0f0f0f0f; $right ^= $temp; $left ^= ($temp << 4);
 
        if ($mode == 1) {if ($encrypt) {$cbcleft = $left; $cbcright = $right;} else {$left ^= $cbcleft2; $right ^= $cbcright2;}}
        $tempresult .= (chr($left>>24 & $masks[24]) . chr(($left>>16 & $masks[16]) & 0xff) . chr(($left>>8 & $masks[8]) & 0xff) . chr($left & 0xff) . chr($right>>24 & $masks[24]) . chr(($right>>16 & $masks[16]) & 0xff) . chr(($right>>8 & $masks[8]) & 0xff) . chr($right & 0xff));
 
        $chunk += 8;
        if ($chunk == 512) {$result .= $tempresult; $tempresult = ""; $chunk = 0;}
      }
 
      return ($result . $tempresult);
    } 
 
    private function _createKeys ($key) {
      $pc2bytes0  = array (0,0x4,0x20000000,0x20000004,0x10000,0x10004,0x20010000,0x20010004,0x200,0x204,0x20000200,0x20000204,0x10200,0x10204,0x20010200,0x20010204);
      $pc2bytes1  = array (0,0x1,0x100000,0x100001,0x4000000,0x4000001,0x4100000,0x4100001,0x100,0x101,0x100100,0x100101,0x4000100,0x4000101,0x4100100,0x4100101);
      $pc2bytes2  = array (0,0x8,0x800,0x808,0x1000000,0x1000008,0x1000800,0x1000808,0,0x8,0x800,0x808,0x1000000,0x1000008,0x1000800,0x1000808);
      $pc2bytes3  = array (0,0x200000,0x8000000,0x8200000,0x2000,0x202000,0x8002000,0x8202000,0x20000,0x220000,0x8020000,0x8220000,0x22000,0x222000,0x8022000,0x8222000);
      $pc2bytes4  = array (0,0x40000,0x10,0x40010,0,0x40000,0x10,0x40010,0x1000,0x41000,0x1010,0x41010,0x1000,0x41000,0x1010,0x41010);
      $pc2bytes5  = array (0,0x400,0x20,0x420,0,0x400,0x20,0x420,0x2000000,0x2000400,0x2000020,0x2000420,0x2000000,0x2000400,0x2000020,0x2000420);
      $pc2bytes6  = array (0,0x10000000,0x80000,0x10080000,0x2,0x10000002,0x80002,0x10080002,0,0x10000000,0x80000,0x10080000,0x2,0x10000002,0x80002,0x10080002);
      $pc2bytes7  = array (0,0x10000,0x800,0x10800,0x20000000,0x20010000,0x20000800,0x20010800,0x20000,0x30000,0x20800,0x30800,0x20020000,0x20030000,0x20020800,0x20030800);
      $pc2bytes8  = array (0,0x40000,0,0x40000,0x2,0x40002,0x2,0x40002,0x2000000,0x2040000,0x2000000,0x2040000,0x2000002,0x2040002,0x2000002,0x2040002);
      $pc2bytes9  = array (0,0x10000000,0x8,0x10000008,0,0x10000000,0x8,0x10000008,0x400,0x10000400,0x408,0x10000408,0x400,0x10000400,0x408,0x10000408);
      $pc2bytes10 = array (0,0x20,0,0x20,0x100000,0x100020,0x100000,0x100020,0x2000,0x2020,0x2000,0x2020,0x102000,0x102020,0x102000,0x102020);
      $pc2bytes11 = array (0,0x1000000,0x200,0x1000200,0x200000,0x1200000,0x200200,0x1200200,0x4000000,0x5000000,0x4000200,0x5000200,0x4200000,0x5200000,0x4200200,0x5200200);
      $pc2bytes12 = array (0,0x1000,0x8000000,0x8001000,0x80000,0x81000,0x8080000,0x8081000,0x10,0x1010,0x8000010,0x8001010,0x80010,0x81010,0x8080010,0x8081010);
      $pc2bytes13 = array (0,0x4,0x100,0x104,0,0x4,0x100,0x104,0x1,0x5,0x101,0x105,0x1,0x5,0x101,0x105);
      $masks = array (4294967295,2147483647,1073741823,536870911,268435455,134217727,67108863,33554431,16777215,8388607,4194303,2097151,1048575,524287,262143,131071,65535,32767,16383,8191,4095,2047,1023,511,255,127,63,31,15,7,3,1,0);
 
      $iterations = ((strlen($key) >= 24) ? 3 : 1);
      $keys = array (); 
      $shifts = array (0, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0);
      $m=0;
      $n=0;
 
      for ($j=0; $j<$iterations; $j++) { 
        $left = (ord($key[$m++]) << 24) | (ord($key[$m++]) << 16) | (ord($key[$m++]) << 8) | ord($key[$m++]);
        $right = (ord($key[$m++]) << 24) | (ord($key[$m++]) << 16) | (ord($key[$m++]) << 8) | ord($key[$m++]);
 
        $temp = (($left >> 4 & $masks[4]) ^ $right) & 0x0f0f0f0f; $right ^= $temp; $left ^= ($temp << 4);
        $temp = (($right >> 16 & $masks[16]) ^ $left) & 0x0000ffff; $left ^= $temp; $right ^= ($temp << -16);
        $temp = (($left >> 2 & $masks[2]) ^ $right) & 0x33333333; $right ^= $temp; $left ^= ($temp << 2);
        $temp = (($right >> 16 & $masks[16]) ^ $left) & 0x0000ffff; $left ^= $temp; $right ^= ($temp << -16);
        $temp = (($left >> 1 & $masks[1]) ^ $right) & 0x55555555; $right ^= $temp; $left ^= ($temp << 1);
        $temp = (($right >> 8 & $masks[8]) ^ $left) & 0x00ff00ff; $left ^= $temp; $right ^= ($temp << 8);
        $temp = (($left >> 1 & $masks[1]) ^ $right) & 0x55555555; $right ^= $temp; $left ^= ($temp << 1);
 
        $temp = ($left << 8) | (($right >> 20 & $masks[20]) & 0x000000f0);
        $left = ($right << 24) | (($right << 8) & 0xff0000) | (($right >> 8 & $masks[8]) & 0xff00) | (($right >> 24 & $masks[24]) & 0xf0);
        $right = $temp;
 
        for ($i=0; $i < count($shifts); $i++) {
          if ($shifts[$i] > 0) {
             $left = (($left << 2) | ($left >> 26 & $masks[26]));
             $right = (($right << 2) | ($right >> 26 & $masks[26]));
          } else {
             $left = (($left << 1) | ($left >> 27 & $masks[27]));
             $right = (($right << 1) | ($right >> 27 & $masks[27]));
          }
          $left = $left & -0xf;
          $right = $right & -0xf;
 
          $lefttemp = $pc2bytes0[$left >> 28 & $masks[28]] | $pc2bytes1[($left >> 24 & $masks[24]) & 0xf]
                  | $pc2bytes2[($left >> 20 & $masks[20]) & 0xf] | $pc2bytes3[($left >> 16 & $masks[16]) & 0xf]
                  | $pc2bytes4[($left >> 12 & $masks[12]) & 0xf] | $pc2bytes5[($left >> 8 & $masks[8]) & 0xf]
                  | $pc2bytes6[($left >> 4 & $masks[4]) & 0xf];
          $righttemp = $pc2bytes7[$right >> 28 & $masks[28]] | $pc2bytes8[($right >> 24 & $masks[24]) & 0xf]
                    | $pc2bytes9[($right >> 20 & $masks[20]) & 0xf] | $pc2bytes10[($right >> 16 & $masks[16]) & 0xf]
                    | $pc2bytes11[($right >> 12 & $masks[12]) & 0xf] | $pc2bytes12[($right >> 8 & $masks[8]) & 0xf]
                    | $pc2bytes13[($right >> 4 & $masks[4]) & 0xf];
          $temp = (($righttemp >> 16 & $masks[16]) ^ $lefttemp) & 0x0000ffff;
          $keys[$n++] = $lefttemp ^ $temp; $keys[$n++] = $righttemp ^ ($temp << 16);
        }
      } 
      return $keys;
    } 
}
 
// 使用方式
$Des = new Des();
$string = 'hello leven';
$key = '123456';
$encode = $Des->encrypt($string,$key,true);
$decode = $Des->decrypt($encode,$key,true);
echo $encode;
echo "<br />";
echo $decode;
?>

另一个DES加密算法

class CryptDes {
 function __construct(){
  $this->key = 'codelovers'; //密钥
  $this->iv = '15548632'; //偏移量
 }
 /*
  * 加密
  */
 function encrypt($input){
  $size = mcrypt_get_block_size(MCRYPT_DES,MCRYPT_MODE_CBC); //3DES加密将MCRYPT_DES改为MCRYPT_3DES
  $input = $this->pkcs5_pad($input, $size); //如果采用PaddingPKCS7,请更换成PaddingPKCS7方法。
  $key = str_pad($this->key,8,'0'); //3DES加密将8改为24
  $td = mcrypt_module_open(MCRYPT_DES, '', MCRYPT_MODE_CBC, '');
  if( $this->iv == '' )
  {
   $iv = @mcrypt_create_iv (mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
  }
  else
  {
   $iv = $this->iv;
  }
  @mcrypt_generic_init($td, $key, $iv);
  $data = mcrypt_generic($td, $input);
  mcrypt_generic_deinit($td);
  mcrypt_module_close($td);
  $data = base64_encode($data);//如需转换二进制可改成 bin2hex 转换
  return $data;
 }
 /*
  * 解密
  */
 function decrypt($encrypted){
  $encrypted = base64_decode($encrypted); //如需转换二进制可改成 bin2hex 转换
  $key = str_pad($this->key,8,'0'); //3DES加密将8改为24
  $td = mcrypt_module_open(MCRYPT_DES,'',MCRYPT_MODE_CBC,'');//3DES加密将MCRYPT_DES改为MCRYPT_3DES
  if( $this->iv == '' )
  {
   $iv = @mcrypt_create_iv (mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
  }
  else
  {
   $iv = $this->iv;
  }
  $ks = mcrypt_enc_get_key_size($td);
  @mcrypt_generic_init($td, $key, $iv);
  $decrypted = mdecrypt_generic($td, $encrypted);
  mcrypt_generic_deinit($td);
  mcrypt_module_close($td);
  $y=$this->pkcs5_unpad($decrypted);
  return $y;
 }
 function pkcs5_pad ($text, $blocksize) {
  $pad = $blocksize - (strlen($text) % $blocksize);
  return $text . str_repeat(chr($pad), $pad);
 }
 function pkcs5_unpad($text){
  $pad = ord($text{strlen($text)-1});
  if ($pad > strlen($text)) {
   return false;
  }
  if (strspn($text, chr($pad), strlen($text) - $pad) != $pad){
   return false;
  }
  return substr($text, 0, -1 * $pad);
 }
 function PaddingPKCS7($data) {
  $block_size = mcrypt_get_block_size(MCRYPT_DES, MCRYPT_MODE_CBC);//3DES加密将MCRYPT_DES改为MCRYPT_3DES
  $padding_char = $block_size - (strlen($data) % $block_size);
  $data .= str_repeat(chr($padding_char),$padding_char);
  return $data;
 }
}

用法如下:

$str = '3water.com';
$des = new CryptDes();
$mres = $des->encrypt($str); //加密
echo $mres."<br/>";
$jres = $des->decrypt($mres); //解密
echo $jres."<br/>";

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持三水点靠木。

PHP 相关文章推荐
PHP目录函数实现创建、读取目录教程实例
Jan 13 PHP
关于查看MSSQL 数据库 用户每个表 占用的空间大小
Jun 21 PHP
php专用数组排序类ArraySortUtil用法实例
Apr 03 PHP
PHP判断是否为空的几个函数对比
Apr 21 PHP
php实现每天自动变换随机问候语的方法
May 12 PHP
php实现将Session写入数据库
Jul 26 PHP
php 数组处理函数extract详解及实例代码
Nov 23 PHP
php简单读取.vcf格式文件的方法示例
Sep 02 PHP
Laravel中Facade的加载过程与原理详解
Sep 22 PHP
php处理抢购类功能的高并发请求
Feb 08 PHP
PHP生成加减算法方式的验证码实例
Mar 12 PHP
PHP封装类似thinkphp连贯操作数据库Db类与简单应用示例
May 08 PHP
php变量与字符串的增删改查操作示例
May 07 #PHP
PHP数组与字符串互相转换实例
May 05 #PHP
禁止直接访问php文件代码分享
May 05 #PHP
php将字符串转换为数组实例讲解
May 05 #PHP
php输出形式实例整理
May 05 #PHP
PHP设计模式(九)外观模式Facade实例详解【结构型】
May 02 #PHP
PHP设计模式(八)装饰器模式Decorator实例详解【结构型】
May 02 #PHP
You might like
Yii+MYSQL锁表防止并发情况下重复数据的方法
2016/07/14 PHP
PHP微信分享开发详解
2017/01/14 PHP
详解Laravel设置多态关系模型别名的方式
2019/10/17 PHP
Javascript中的变量使用说明
2010/05/18 Javascript
jQuery学习笔记之 Ajax操作篇(二) - 数据传递
2014/06/23 Javascript
理解jQuery stop()方法
2014/11/21 Javascript
轻松创建nodejs服务器(6):作出响应
2014/12/18 NodeJs
jQuery下拉框的简单应用
2016/06/24 Javascript
JS中作用域和变量提升(hoisting)的深入理解
2016/10/31 Javascript
vue 2.0组件与v-model详解
2017/03/27 Javascript
get  post jsonp三种数据交互形式实例详解
2017/08/25 Javascript
Vue-cli Eslint在vscode里代码自动格式化的方法
2018/02/23 Javascript
[43:35]TI4 循环赛第二日Liquid vs Fnatic
2014/07/11 DOTA
python实现爬虫统计学校BBS男女比例(一)
2015/12/31 Python
Python中datetime模块参考手册
2017/01/13 Python
Python入门_浅谈字符串的分片与索引、字符串的方法
2017/05/16 Python
使用python 和 lint 删除项目无用资源的方法
2017/12/20 Python
为什么入门大数据选择Python而不是Java?
2018/03/07 Python
python 二维数组90度旋转的方法
2019/01/28 Python
解决python 虚拟环境删除包无法加载的问题
2020/07/13 Python
Django数据库迁移常见使用方法
2020/11/12 Python
Pytorch 中的optimizer使用说明
2021/03/03 Python
你不知道的葡萄干处理法、橙蜜处理法、二氧化碳酵母法
2021/03/17 冲泡冲煮
HTML5 常用语法一览(列举不支持的属性)
2010/01/26 HTML / CSS
城野医生官方海外旗舰店:风靡亚洲毛孔收敛水
2018/04/26 全球购物
工厂门卫岗位职责
2013/11/25 职场文书
经典婚礼主持词
2014/03/13 职场文书
外联部演讲稿
2014/05/24 职场文书
主题党日活动总结
2014/07/08 职场文书
社会治安综合治理责任书
2015/01/29 职场文书
幼儿园感恩节活动总结
2015/03/24 职场文书
2015年高中语文教学总结
2015/08/18 职场文书
2016年“5.12”国际护士节活动总结
2016/04/06 职场文书
导游词之岳阳楼
2019/09/25 职场文书
关于JavaScript回调函数的深入理解
2021/06/27 Javascript
virtualenv隔离Python环境的问题解析
2022/06/21 Python