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    ▪php set_time_limit(0) 设置程序执行时间的函数       set_time_limit(0); 括号里边的数字是执行时间，如果为零说明永久执行直到程序结束，如果为大于零的数字，则不管程序是否执行完成，到了设定的秒数，程序结束。 一个简单的例子，在网页.........

    ▪PHP 可阅读随机字符串代码       代码如下: /************** *@length - length of random string (must be a multiple of 2) **************/ function readable_random_string($length = 6){ $conso=array("b","c","d","f","g","h","j","k","l", "m","n","p","r","s","t","v","w","x","y","z"); .........

    ▪PHP 一个随机字符串生成代码       代码如下: /************* *@l - length of random string */ function generate_rand($l){ $c= "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"; srand((double)microtime()*1000000); for($i=0; $i<$l; $i++) { $rand.= $c[rand()%strlen(.........

代码如下:

<?php
//set_time_limit(0);
$i=1500;
include ("inc/conn.php");
while($i>0)
{
$sql="INSERT INTO php (php)
VALUES ('$i')";
if ($conn->execute($sql)===flase)
{
//echo "数据插入错误".$conn->errormsg();
}
else
{
$phpid=$conn->Insert_ID();
echo $i."已经存入数据库,编号：".$phpid;
}
$i--;
echo "<hr>";
}
?>

代码如下:

/**************
*@length - length of random string (must be a multiple of 2)
**************/
function readable_random_string($length = 6){
$conso=array("b","c","d","f","g","h","j","k","l",
"m","n","p","r","s","t","v","w","x","y","z");
$vocal=array("a","e","i","o","u");
$password="";
srand ((double)microtime()*1000000);
$max = $length/2;
for($i=1; $i<=$max; $i++)
{
$password.=$conso[rand(0,19)];
$password.=$vocal[rand(0,4)];
}
return $password;
}

代码如下:

/*************
*@l - length of random string
*/
function generate_rand($l){
$c= "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
srand((double)microtime()*1000000);
for($i=0; $i<$l; $i++) {
$rand.= $c[rand()%strlen($c)];
}
return $rand;
}