PHP不能修改头信息--使用输入表单
PHP不能修改头信息--使用输入表单
提问于 2017-10-23 20:31:16
我的代码抛出了以下错误：
警告:无法修改标题信息-第7行中的/Users/Desktop/Test/index.php:5中已经由/Users/johns/Desktop/Test/index.php :5发送的标题
实际的代码问题似乎就在这里：
<?php
if (isset($_GET["googlesearch"])) {
header("Location: https://www.test.com/#!q=" . $_GET["googlesearch"] . "&page=0&refinements=%5B%5D&numerics_refinements=%7B%7D&index_name=%22_default_products%22");
exit;
}
?>我的完整页面代码是：
<!--
This is the minimum valid AMP HTML document. Just type away
here and the AMP Playground will render your document on the fly.
-->
<?php
if (isset($_GET["googlesearch"])) {
header("Location: https://www.test.com/#!q=" . $_GET["googlesearch"] . "&page=0&refinements=%5B%5D&numerics_refinements=%7B%7D&index_name=%22_default_products%22");
exit;
}
?>
<!doctype html>
<html ⚡>
<head>
<meta charset="utf-8">
<link rel="canonical" href="self.html" />
<meta name="viewport" content="width=device-width,minimum-scale=1">
<style amp-boilerplate>body{-webkit-animation:-amp-start 8s steps(1,end) 0s 1 normal both;-moz-animation:-amp-start 8s steps(1,end) 0s 1 normal both;-ms-animation:-amp-start 8s steps(1,end) 0s 1 normal both;animation:-amp-start 8s steps(1,end) 0s 1 normal both}@-webkit-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@-moz-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@-ms-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@-o-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}</style><noscript><style amp-boilerplate>body{-webkit-animation:none;-moz-animation:none;-ms-animation:none;animation:none}</style></noscript>
<script async src="https://cdn.ampproject.org/v0.js"></script>
<!-- Custom CSS -->
<style amp-custom>
<?php include './components/skin/style/css/base.css'; ?>
</style>
</head>
<body>
<!-- Search bar -->
<div class="sidebar">
<form method="GET"
class="p2"
action="<?php echo $_SERVER['PHP_SELF']; ?>"
target="_top">
<div class="ampstart-input inline-block relative mb3">
<input type="search"
placeholder="Search..."
name="googlesearch">
</div>
<input type="submit"
value="OK"
class="ampstart-btn caps">
</form>
</div>
</body>
</html>我尝试过将ob_start();放置在多个地方，但没有运气。有人能帮忙吗？
回答 1
Stack Overflow用户
回答已采纳
发布于 2017-10-23 20:33:54
删除所有这些：
<!--
This is the minimum valid AMP HTML document. Just type away
here and the AMP Playground will render your document on the fly.
-->在此之前：
<?php
if (isset($_GET["googlesearch"])) {
header("Location: https://www.test.com/#!q=" . $_GET["googlesearch"] . "&page=0&refinements=%5B%5D&numerics_refinements=%7B%7D&index_name=%22_default_products%22");
exit;
}
?>在<?php删除之前也有一个空格。如果在标头之前发送任何输出，则会出现错误。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/46897985
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