2018.6.16 PHP Small Experiment

PHP Experimental Experiment One

<?php/** * Created by Phpstorm. * User:qichunlin * DATE:2018/5/17 * Time: PM 5:35 */echo "Please enter the number to sort:<br/>"; echo "<form method=post>";//Loop Generate text    box for ($i = 1; $i < 6; $i + +) {//text box name is array name echo "<input type= ' text ' name= ' stu[] ' size= ' 5 ' >";    if ($i < 5) {echo "-";    }} echo "<input type= ' submit ' name= ' BT ' value= ' submitted ' > ';    echo "</form>";        if (Isset ($_post[' BT ')) {$temp = 0;        $stu = $_post[' Stu ');        $num = count ($stu);        echo "The data you have entered is <br/>"; foreach ($stu as $score) {echo $score.        "<br>"; } for ($i = 0; $i < $num, $i + +) for ($j = $i + 1; $j < $num; $j + +) {if ($stu [$i] & Gt                    $stu [$j]) {$temp = $stu [$i];                    $stu [$i] = $stu [$j];                $stu [$j] = $temp;    }} echo "The sorted data is shown below:<br/>"; Use while loop to iterate through an array while (list ($key, $value) = each ($stu)) {//Outputs the sorted array echo $value.    "<br/>"; }}?>

Experiment Two

<?php/** * Created by Phpstorm. * User:qichunlin * DATE:2018/5/17 * Time: PM 6:10 */echo "Please enter the study number:<br/>"; echo "<form method= ' post ' >"; for ($i = 1; $i < 6;    $i + +) {//The name of the text box is the array name echo "<input type= ' text ' name= ' stu[] ' size= ' 6 ' >"; if ($i < 5) echo "-";}    echo "<input type= ' submit ' name= ' BT ' value= ' submitted ' >", echo "</form>"; if (Isset ($_post[' BT ')) {//echo "123";    $k = 0;    $JSJ = Array ();    $stu = $_post[' Stu '); for ($i = 0; $i < count ($stu), $i + +) for ($j = $i + 1; $j < count ($stu); $j + +) {if (strcmp ($stu [$        I], $stu [$j] = = 0) array_splice ($stu, $j, 1);    } $STR = Implode (",", $stu);    echo "All students study number as follows:</br>"; Echo $str.    "<br>"; foreach ($stu as $value) {if (Strstr ($value, "0811")) {$string = Str_replace ("08121", "08110", $value)            ;            $JSJ [$k] = $string;        $k + +;    }} echo "The computer professional study number is as follows:</br>"; Echo Implode (",", "$JSJ ");}? >

Experiment Three

<?php
/**

• Created by Phpstorm.
• User:qichunlin
• Date:2018/5/17

• Time: 4:36
  */
  if (Isset ($_post[' GO ')) {
  $id = $_post[' id '];
  $pwd = $_post[' pwd '];
  $birthday = $_post[' birthday ');
  $Email = $_post[' Email '];
  Check to see if it is a 6~12 character
  $checkId = Preg_match ('/^\w{6,12}$/', $id);
  Check if it is a 6~20 number
  $CHECKPWD = Preg_match ('/^\d{6,20}$/', $pwd);
  Check if it is a valid date
  $checkBirthday = Preg_match ('/^\d{4}-(0?\d|1?[ 012])-(0?\d|3[01]) $/', $birthday);
  Check the legality of email address
  $checkEmail = Preg_match ('/^[a-za-z0-9_-][email protected][a-za-z0-9-]+.[ a-za-z0-9-.] +$/', $Email);

  if (! $checkId)
  echo "";
  else if (! $checkPwd)
  echo "";
  else if (! $checkBirthday)
  echo "";
  else if (! $checkEmail)
  echo "";
  Else
  echo "registered successfully!";
  }
  ?>
  ```

Experiment Four

<!    DOCTYPE html><!--HTML5 form--><style type= "text/css" > table, Div, TD {Text-align:center;    } table {margin:0 auto;        } p {font-size:18px;    Color: #FF0000;                }</style><form name=fr1 method=post> <table border=1> <tr> <td>            <div> number </div> </td> <td> <div> name </div> </td> <td> <div> results </div> </td> </tr&        Gt         <?php/** * Created by Phpstorm.            * User:qichunlin * date:2018/5/20 * Time: PM 2:56 */for ($i = 1; $i < 5; $i + +) { ?> <tr> <td><input type=text name= "xh[]" ></td> & Lt;td><input typet=text name= "xm[" ></td> <td><input type=text Name= "cj[" ></td> </tr> <?php}?> <tr> &LT;TD colspan= "3" ><input type= "Submit" Name= "Bt_stu" value= "Submit" ></td> </tr> </table>    </form><p align=center> Note that the study number value cannot be repeated </p><?phpif (Isset ($_post[' Bt_stu ')) {$XH = $_post[' XH '];    $XM = $_post[' XM '];    $CJ = $_post[' CJ '];    Array_multisort ($CJ, $XH, $XM);    for ($i = 0; $i < count ($XH), $i + +) $sum [$i] = Array ($XH [$i], $XM [$i]);    echo "<div> after sorting the score table below:</div>"; echo "<table border=2><tr><td> No. </td><td> name </td><td> score </td></    Tr> ";        foreach ($sum as $value) {list ($stu _number, $stu _name, $stu _score) = $value; echo "<tr><td> $stu _number</td><td> $stu _name</td><td> $stu _score</td>            </tr> ";    } echo "</table><br/>";    Reset ($sum); while (List ($key, $value) = each ($sum)) {list ($stu _number, $stu _name, $stu _score) = $value;            if ($stu _number = = "3") {echo "<p align=center>"; Echo $stu _number. "The name is:". $stu _name.            ","; echo "score is:".            $stu _score;        Break }}}?>

Experiment Five

<!        DOCTYPE html><!--HTMl5 form--><style type= "Text/css" > P {font-family: "Founder Shu Body";    Text-align:center;        } div {font-family: "bold";    Text-align:center; }</style><form name= "F1" action= "method=" POST "> <p> your email address: <br><input type=" text "Name=" Email "size=" ><br> your message: <br><textarea name= "note" rows= "ten" cols= "></textarea"    > <br><input type= "Submit" Name= "BT1" value= "submit" ><input type= "reset" name= "BT2" value= "Empty" > </p></form><?php/** * Created by Phpstorm. * User:qichunlin * date:2018/5/20 * Time: PM 6:37 */if (isset ($_post[' bt1 ')) {//Receive email address $Email = $_post[' email '    ];    $note = $_post[' Note ']; Determine whether to get the value if (! $Email | |! $note) echo "<script>alert (' Eamil address and message please complete!    ') </script> ";        else {//split Email address $array = explode ("@", $Email); If there are two @ symbols then an error if (COUNT ($array)! = 2) echo "<script>alert (' email address format is wrong!        ') </script> ";            else {//Get the content in front of @ $username = $array [0];            Get the content after @ $netname = $array [1]; If the username contains "." Or "," will error if (Strstr ($username, ".") or Strstr ($username, ",")) echo "<script>alert (' email Incorrect address format!            ') </script> "; else {$str 1 = htmlspecialchars ("<");//Output symbol "<" $str 2 = Htmlspecialchars (">");//output symbol                ">" $newnote = Str_replace ("I", "I", $note);                XSS attacks can be converted into HTML entity form to solve $newnote =htmlspecialchars ($newnote);                echo "<div>"; echo "User". $str 1. $username. $str 2. Hello!                &nbsp; "; echo "You are". $username. Netizens                <br> "; echo "<br> your message is:<br>&nbsp;&nbsp;&nbsp;". $newnote.                "<br>";            echo "</div>"; }        }    }}?> 

2018.6.16 PHP Small Experiment