PHP generates verification codes with specified digits and controllable interference elements

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Generate Mix Verification code and encapsulated into a function, file name: buildVerifyCode.func.php

//range('a','z')将括号中的内容作为键值生成一个索引数组 //array_merge($array1,$array2)合并两个数组中的键值，生成新索引数组 //array_flip()将括号中的内容，键名与键值对换 //array_rand($array,$length)随机取出$array中$length长度的键名作为新数组的键值，生成一个索引数组 //join('',$array)以空连接数组中的值，以数组的内容生成字符串

      


      
# Test whether the generated verification code is correct, file name: getCode.php
      

      
Generate image verification code, write specific comments when you have time, file name: getVerifyCodeImg.func.php
      

      
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