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51 lines
1.4 KiB
51 lines
1.4 KiB
<?php
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//require_once $_SERVER["DOCUMENT_ROOT"] ."/config.php";
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//require_once $_SERVER["DOCUMENT_ROOT"] . "/database/DbUtil.php";
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//require_once $_SERVER["DOCUMENT_ROOT"] . "/entity/Question.php";
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//require_once $_SERVER["DOCUMENT_ROOT"] . "/entity/Answer.php";
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//require_once $_SERVER["DOCUMENT_ROOT"] . "/Log.php";
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//echo <<<EOF
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//<html>
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//<head>
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//<meta charset="utf-8">
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//<title>菜鸟教程(runoob.com)</title>
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//</head>
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//<body>
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//
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//<form action="/api/BaiduImage.php" method="post" enctype="multipart/form-data">
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// <label for="file">文件名：</label>
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// <input type="file" name="file" id="file"><br>
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// <input type="submit" name="submit" value="提交">
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//</form>
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//
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//</body>
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//</html>
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//EOF;
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//var_dump(array_search(new Answer(1, 2, 3, 4), array(new Answer(4, 5, 6, 7), new Answer(2, 2, 3, 4))));
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//$s1 = "dotcoo world!";
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//$s2 = "dotcoo";
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//$s3 = "hello dotcoo";
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//var_dump(substr($s1, -strlen($s2)) === $s2);
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/*
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* 生成随机字符串
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* @param int $length 生成随机字符串的长度
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* @param string $char 组成随机字符串的字符串
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* @return string $string 生成的随机字符串
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*/
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function str_rand($length = 32, $char = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ') {
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if(!is_int($length) || $length < 0) {
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return false;
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}
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$string = '';
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for($i = $length; $i > 0; $i--) {
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$string .= $char[mt_rand(0, strlen($char) - 1)];
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}
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return $string;
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}
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var_dump(str_rand(5));
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