如何在PHP和MySQL上使用循环？_Php_Mysql_Loops_Xampp_Shuffle

如何在PHP和MySQL上使用循环？

php mysql loops xampp

如何在PHP和MySQL上使用循环？,php,mysql,loops,xampp,shuffle,Php,Mysql,Loops,Xampp,Shuffle,你好，我有这样的桌子： E = Junho B = Nichkhun C = Taecyeon F = Chansung D = Wooyoung A = Minjun B = Nichkhun D = Wooyoung F = Chansung E = Junho A = Minjun C = Taecyeon E = Junho B = Nichkhun C = Taecyeon F = Chansung D = Wooyoung A = Minjun F = Chansung D

你好，我有这样的桌子：

E = Junho
B = Nichkhun
C = Taecyeon
F = Chansung
D = Wooyoung
A = Minjun

B = Nichkhun
D = Wooyoung
F = Chansung
E = Junho
A = Minjun
C = Taecyeon

E = Junho
B = Nichkhun
C = Taecyeon
F = Chansung
D = Wooyoung
A = Minjun 

F = Chansung
D = Wooyoung
C = Taecyeon
E = Junho
B = Nichkhun
A = Minjun

A = Minjun
D = Wooyoung
E = Junho
B = Nichkhun
F = Chansung
C = Taecyeon

D = Wooyoung
B = Nichkhun
C = Taecyeon
A = Minjun
E = Junho
F = Chansung

C = Taecyeon
D = Wooyoung
F = Chansung
A = Minjun
E = Junho
B = Nichkhun

A = Minjun
F = Chansung
C = Taecyeon
E = Junho
D = Wooyoung
B = Nichkhun

C = Taecyeon
D = Wooyoung
F = Chansung
B = Nichkhun
A = Minjun
E = Junho

E = Junho
C = Taecyeon
B = Nichkhun
F = Chansung
D = Wooyoung
A = Minjun

E = Junho
B = Nichkhun
A = Minjun
D = Wooyoung
F = Chansung
C = Taecyeon

D = Wooyoung
A = Minjun
C = Taecyeon
B = Nichkhun
F = Chansung
E = Junho

  <?php

mysql_connect("localhost", "root", "1234") or die(mysql_error());
mysql_select_db("Employee") or die(mysql_error());

$employees = mysql_query("SELECT * FROM employee ORDER BY EmployeeID") 
or die(mysql_error());  


$letters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'; 

$array = array(); 

while($row = mysql_fetch_assoc($employees)){ 
$array[] = $row;
} 

$i = 0; 

// Assign a letter to each employee in the correct order 
foreach($array as $Key => $row){ 
$array[$Key]["letter"] = substr($letters, $i, 1); 
$i++; 
if($i > 25){ 
$i = 0; 
} 
} 

// Shuffle the array 
shuffle($array); 

// Print each entry with correctly assigned letter and name. 
for ($i=1; $i<=10; $i++){

foreach($array as $row) { 
echo "<DIV>" . $row["letter"] . " = " . $row['EmployeeName'] . " </div>"; 
echo "";

}
}

?>

员工

EmployeeID  EmployeeName 
1234        Minjun   
1235        Nichkhun     
1236        Taecyeon     
1237        Wooyoung     
1238        Junho       
1239        Chansung

我使用了以下源代码：

    <?php

mysql_connect("localhost", "root", "1234") or die(mysql_error());
mysql_select_db("Employee") or die(mysql_error());

$employees = mysql_query("SELECT * FROM employee ORDER BY EmployeeID") 
or die(mysql_error());  


$letters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'; 

$array = array(); 

while($row = mysql_fetch_assoc($employees)){ 
$array[] = $row;
} 

$i = 0; 

// Assign a letter to each employee in the correct order 
foreach($array as $Key => $row){ 
$array[$Key]["letter"] = substr($letters, $i, 1); 
$i++; 
if($i > 25){ 
$i = 0; 
} 
} 

// Shuffle the array 
shuffle($array); 

// Print each entry with correctly assigned letter and name. 
foreach($array as $row) { 
echo "<DIV>" . $row["letter"] . " = " . $row['EmployeeName'] . " </div>"; 
}


?>

或者像这样：

E = Junho
B = Nichkhun
C = Taecyeon
F = Chansung
D = Wooyoung
A = Minjun

B = Nichkhun
D = Wooyoung
F = Chansung
E = Junho
A = Minjun
C = Taecyeon

E = Junho
B = Nichkhun
C = Taecyeon
F = Chansung
D = Wooyoung
A = Minjun 

F = Chansung
D = Wooyoung
C = Taecyeon
E = Junho
B = Nichkhun
A = Minjun

A = Minjun
D = Wooyoung
E = Junho
B = Nichkhun
F = Chansung
C = Taecyeon

D = Wooyoung
B = Nichkhun
C = Taecyeon
A = Minjun
E = Junho
F = Chansung

C = Taecyeon
D = Wooyoung
F = Chansung
A = Minjun
E = Junho
B = Nichkhun

A = Minjun
F = Chansung
C = Taecyeon
E = Junho
D = Wooyoung
B = Nichkhun

C = Taecyeon
D = Wooyoung
F = Chansung
B = Nichkhun
A = Minjun
E = Junho

E = Junho
C = Taecyeon
B = Nichkhun
F = Chansung
D = Wooyoung
A = Minjun

E = Junho
B = Nichkhun
A = Minjun
D = Wooyoung
F = Chansung
C = Taecyeon

D = Wooyoung
A = Minjun
C = Taecyeon
B = Nichkhun
F = Chansung
E = Junho

  <?php

mysql_connect("localhost", "root", "1234") or die(mysql_error());
mysql_select_db("Employee") or die(mysql_error());

$employees = mysql_query("SELECT * FROM employee ORDER BY EmployeeID") 
or die(mysql_error());  


$letters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'; 

$array = array(); 

while($row = mysql_fetch_assoc($employees)){ 
$array[] = $row;
} 

$i = 0; 

// Assign a letter to each employee in the correct order 
foreach($array as $Key => $row){ 
$array[$Key]["letter"] = substr($letters, $i, 1); 
$i++; 
if($i > 25){ 
$i = 0; 
} 
} 

// Shuffle the array 
shuffle($array); 

// Print each entry with correctly assigned letter and name. 
for ($i=1; $i<=10; $i++){

foreach($array as $row) { 
echo "<DIV>" . $row["letter"] . " = " . $row['EmployeeName'] . " </div>"; 
echo "";

}
}

?>

问题是我想显示10种瓦里安随机数，如下所示：

E = Junho
B = Nichkhun
C = Taecyeon
F = Chansung
D = Wooyoung
A = Minjun

B = Nichkhun
D = Wooyoung
F = Chansung
E = Junho
A = Minjun
C = Taecyeon

E = Junho
B = Nichkhun
C = Taecyeon
F = Chansung
D = Wooyoung
A = Minjun 

F = Chansung
D = Wooyoung
C = Taecyeon
E = Junho
B = Nichkhun
A = Minjun

A = Minjun
D = Wooyoung
E = Junho
B = Nichkhun
F = Chansung
C = Taecyeon

D = Wooyoung
B = Nichkhun
C = Taecyeon
A = Minjun
E = Junho
F = Chansung

C = Taecyeon
D = Wooyoung
F = Chansung
A = Minjun
E = Junho
B = Nichkhun

A = Minjun
F = Chansung
C = Taecyeon
E = Junho
D = Wooyoung
B = Nichkhun

C = Taecyeon
D = Wooyoung
F = Chansung
B = Nichkhun
A = Minjun
E = Junho

E = Junho
C = Taecyeon
B = Nichkhun
F = Chansung
D = Wooyoung
A = Minjun

E = Junho
B = Nichkhun
A = Minjun
D = Wooyoung
F = Chansung
C = Taecyeon

D = Wooyoung
A = Minjun
C = Taecyeon
B = Nichkhun
F = Chansung
E = Junho

  <?php

mysql_connect("localhost", "root", "1234") or die(mysql_error());
mysql_select_db("Employee") or die(mysql_error());

$employees = mysql_query("SELECT * FROM employee ORDER BY EmployeeID") 
or die(mysql_error());  


$letters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'; 

$array = array(); 

while($row = mysql_fetch_assoc($employees)){ 
$array[] = $row;
} 

$i = 0; 

// Assign a letter to each employee in the correct order 
foreach($array as $Key => $row){ 
$array[$Key]["letter"] = substr($letters, $i, 1); 
$i++; 
if($i > 25){ 
$i = 0; 
} 
} 

// Shuffle the array 
shuffle($array); 

// Print each entry with correctly assigned letter and name. 
for ($i=1; $i<=10; $i++){

foreach($array as $row) { 
echo "<DIV>" . $row["letter"] . " = " . $row['EmployeeName'] . " </div>"; 
echo "";

}
}

?>

所以我添加了如下代码：

E = Junho
B = Nichkhun
C = Taecyeon
F = Chansung
D = Wooyoung
A = Minjun

B = Nichkhun
D = Wooyoung
F = Chansung
E = Junho
A = Minjun
C = Taecyeon

E = Junho
B = Nichkhun
C = Taecyeon
F = Chansung
D = Wooyoung
A = Minjun 

F = Chansung
D = Wooyoung
C = Taecyeon
E = Junho
B = Nichkhun
A = Minjun

A = Minjun
D = Wooyoung
E = Junho
B = Nichkhun
F = Chansung
C = Taecyeon

D = Wooyoung
B = Nichkhun
C = Taecyeon
A = Minjun
E = Junho
F = Chansung

C = Taecyeon
D = Wooyoung
F = Chansung
A = Minjun
E = Junho
B = Nichkhun

A = Minjun
F = Chansung
C = Taecyeon
E = Junho
D = Wooyoung
B = Nichkhun

C = Taecyeon
D = Wooyoung
F = Chansung
B = Nichkhun
A = Minjun
E = Junho

E = Junho
C = Taecyeon
B = Nichkhun
F = Chansung
D = Wooyoung
A = Minjun

E = Junho
B = Nichkhun
A = Minjun
D = Wooyoung
F = Chansung
C = Taecyeon

D = Wooyoung
A = Minjun
C = Taecyeon
B = Nichkhun
F = Chansung
E = Junho

  <?php

mysql_connect("localhost", "root", "1234") or die(mysql_error());
mysql_select_db("Employee") or die(mysql_error());

$employees = mysql_query("SELECT * FROM employee ORDER BY EmployeeID") 
or die(mysql_error());  


$letters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'; 

$array = array(); 

while($row = mysql_fetch_assoc($employees)){ 
$array[] = $row;
} 

$i = 0; 

// Assign a letter to each employee in the correct order 
foreach($array as $Key => $row){ 
$array[$Key]["letter"] = substr($letters, $i, 1); 
$i++; 
if($i > 25){ 
$i = 0; 
} 
} 

// Shuffle the array 
shuffle($array); 

// Print each entry with correctly assigned letter and name. 
for ($i=1; $i<=10; $i++){

foreach($array as $row) { 
echo "<DIV>" . $row["letter"] . " = " . $row['EmployeeName'] . " </div>"; 
echo "";

}
}

?>

你知道问题出在哪里吗？谢谢您

更新您的“for循环”，如下所示，然后重试

 //shuffle($array); //Comment this line

    for ($i=1; $i<=10; $i++){
    shuffle($array);
    foreach($array as $row) { 
    echo "<DIV>" . $row["letter"] . " = " . $row['EmployeeName'] . " </div>"; 
    echo "";

    }
    }

//洗牌（$array）//评论这行
对于（$i=1；$ioh-yup，它现在正在工作。非常感谢您的帮助：）