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php - x = 1 到 20 的 PHP 循环

问题描述

我正在寻找一种方法来简化这一点。

    $token2h=substr(str_shuffle("0p23456789ABCDEFGHIJKLMNoPQRSZUVWXYZ"), 0, 20);
    $token3h=substr(str_shuffle("0p23456789ABCDEFGHIJKLMNoPQRSZUVWXYZ"), 0, 20);
    $token4h=substr(str_shuffle("0p23456789ABCDEFGHIJKLMNoPQRSZUVWXYZ"), 0, 20);
    $token5h=substr(str_shuffle("0p23456789ABCDEFGHIJKLMNoPQRSZUVWXYZ"), 0, 20);
    $token6h=substr(str_shuffle("0p23456789ABCDEFGHIJKLMNoPQRSZUVWXYZ"), 0, 20);
    $token7h=substr(str_shuffle("0p23456789ABCDEFGHIJKLMNoPQRSZUVWXYZ"), 0, 20);
    $token8h=substr(str_shuffle("0p23456789ABCDEFGHIJKLMNoPQRSZUVWXYZ"), 0, 20);
    $token9h=substr(str_shuffle("0p23456789ABCDEFGHIJKLMNoPQRSZUVWXYZ"), 0, 20);
    $token10h=substr(str_shuffle("0p23456789ABCDEFGHIJKLMNoPQRSZUVWXYZ"), 0, 20);
    $token11h=substr(str_shuffle("0p23456789ABCDEFGHIJKLMNoPQRSZUVWXYZ"), 0, 20);
    $token12h=substr(str_shuffle("0p23456789ABCDEFGHIJKLMNoPQRSZUVWXYZ"), 0, 20);
    $token13h=substr(str_shuffle("0p23456789ABCDEFGHIJKLMNoPQRSZUVWXYZ"), 0, 20);
    $token14h=substr(str_shuffle("0p23456789ABCDEFGHIJKLMNoPQRSZUVWXYZ"), 0, 20);
    $token15h=substr(str_shuffle("0p23456789ABCDEFGHIJKLMNoPQRSZUVWXYZ"), 0, 20);
    $token16h=substr(str_shuffle("0p23456789ABCDEFGHIJKLMNoPQRSZUVWXYZ"), 0, 20);
    $token17h=substr(str_shuffle("0p23456789ABCDEFGHIJKLMNoPQRSZUVWXYZ"), 0, 20);
    $token18h=substr(str_shuffle("0p23456789ABCDEFGHIJKLMNoPQRSZUVWXYZ"), 0, 20);
    $token19h=substr(str_shuffle("0p23456789ABCDEFGHIJKLMNoPQRSZUVWXYZ"), 0, 20);
    $token20h=substr(str_shuffle("0p23456789ABCDEFGHIJKLMNoPQRSZUVWXYZ"), 0, 20);

我尝试了各种方法来制作循环，但似乎无法让它工作。

标签： php

解决方案

您可以制作一个标记数组或使用range()和foreach() 动态制作标记变量，

<?php
$range = range(2,20);

# make an array for tokens using rnage
foreach($range as $k){
    $tokens["token{$k}h"] = substr(str_shuffle("0p23456789ABCDEFGHIJKLMNoPQRSZUVWXYZ"), 0, 20);
}

# make token variables using range
foreach($range as $k){
    ${"token{$k}h"} = substr(str_shuffle("0p23456789ABCDEFGHIJKLMNoPQRSZUVWXYZ"), 0, 20);
}

?>

工作演示： https ://3v4l.org/R2LRF

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