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51 lines
1.1 KiB
51 lines
1.1 KiB
<?php
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namespace App\Service\v3\Implementations;
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use App\Service\v3\Interfaces\HelperServiceInterface;
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class HelperService implements HelperServiceInterface
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{
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public function makeNumCode($length)
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{
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// 获取验证码
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$codeArr = array_map(function ($item) {
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return mt_rand(0,9);
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}, array_pad([], $length, 0));
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// 返回验证码
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return implode('', $codeArr);
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}
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/**
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* 请求参数判空
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* @param mixed $var 参数
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* @return bool
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*/
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public function nonempty($var)
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{
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return ! (
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isset($var)
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&& $var
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&& !empty($var)
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&& !is_null($var)
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&& $var != 'undefined'
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&& $var != 'unknown'
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&& $var != 'null'
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&& $var != 'false'
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);
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}
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public function filterEmoji($str)
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{
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$str = preg_replace_callback(
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'/./u',
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function (array $match) {
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return strlen($match[0]) >= 4 ? '' : $match[0];
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},
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$str);
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return $str;
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}
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}
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