麻烦帮我设计2个关于随机问题的简单php程序

来源：百度知道 编辑：UC知道 时间：2024/06/28 05:55:23
A
让php程序随机产生100组随机的字符串，每一组字符串由5个"字母"组成，然后以10行10列的表格显示出来。
B
让php程序随机产生100组随机的字符串，每一组字符串由5个"字母"和"数字"随机组成(字母和数字的个数加起来是5个就行了），然后以10行10列的表格显示出来。

我不会php，恳求给我直接可以使用的完整代码。

A
<?php
$test = array("a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z");
echo "<table><tr>";
for($i=1;$i<=100;$i++)
{
echo "<td>".$test[rand(0,25)].$test[rand(0,25)].$test[rand(0,25)].$test[rand(0,25)].$test[rand(0,25)]."</td>";
if($i%10==0)
{
echo "</tr><tr>";
}
}
echo "</tr></table>";
?>

B
<?php
$test = array("a","b","c","d","e","f","g","h","i","j","k",