/**************
*@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{
$password.=$conso[rand(0,19)];
$password.=$vocal[rand(0,4)];
}
return $password;
}
这里是摘自脚本之家之前发布的文章。更多的技巧可以参考。
收集的二十一个实用便利的PHP函数代码

php将16进制字符串转为数字的方法:1、使用hexdec()函数,语法“hexdec(十六进制字符串)”;2、使用base_convert()函数,语法“bindec(十六进制字符串, 16, 10)”。

PHP 是一门功能强大的编程语言,广泛应用于 Web 开发领域。其中一个非常常见的情况是需要将字符串转换为小数。这在进行数据处理的时候非常有用。在本文中,我们将介绍如何在 PHP 中将字符串转换为小数。

检测变量是否为字符串的方法:1、利用“%T”格式化标识,语法“fmt.Printf("variable count=%v is of type %T \n", count, count)”;2、利用reflect.TypeOf(),语法“reflect.TypeOf(变量)”;3、利用reflect.ValueOf().Kind()检测;4、使用类型断言,可以对类型进行分组。

生成随机数或字母数字字符串的能力在许多情况下都会派上用场。您可以使用它在游戏中的不同位置生成敌人或食物。您还可以使用它向用户建议随机密码或创建文件名来保存文件。我写了一篇关于如何在PHP中生成随机字母数字字符串的教程。我在这篇文章的开头说,几乎没有事件是真正随机的,同样的情况也适用于随机数或字符串生成。在本教程中,我将向您展示如何在JavaScript中生成伪随机字母数字字符串。在JavaScript中生成随机数让我们从生成随机数开始。我想到的第一个方法是Math.random(),它返回一个浮

php字符串长度不一致的解决办法:1、通过mb_detect_encoding()函数查看字符串的编码方式;2、通过mb_strlen函数查看具体字符长度;3、使用正则表达式“preg_match_all('/[\x{4e00}-\x{9fff}]+/u', $str1, $matches);”剔除非中文字符即可。

随机和伪随机的区别在可预测性、重现性、均匀性和安全性等。详细介绍:1、可预测性,随机数是无法被预测的,即使知道了过去的结果也不能准确地预测未来的结果,而伪随机数是可以被预测的,因为它们是通过算法生成的,只要知道了算法和种子,就可以重现生成相同的数列或序列;2、重现性,随机数是不可重现的,每次生成的结果都是独立的,而伪随机数是可重现的,只要使用相同的算法和种子等等。

删除方法:1、使用TrimSpace()函数去除字符串左右两边的空格,语法“strings.TrimSpace(str)”;2、使用Trim()函数去除字符串左右两边的空格,语法“strings.Trim(str, " ")”;3、使用Replace()函数去除字符串的全部空格,语法“strings.Replace(str, " ", "", -1)”。

在开发PHP应用程序时,有时我们需要去掉字符串前面的某些特定字符或者字符串。在这种情况下,我们需要使用一些PHP函数来实现这一目标。本文将介绍一些PHP函数,帮助您轻松地去掉字符串前面的字符或字符串。


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