php 警告：strpos()：......wordpress 插件中的空针
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Warning: strpos(): Empty needle in ......wordpress Plugin
提问by user57139
I get this error :
我收到此错误：
Warning: strpos(): Empty needle in ......popularity-contest.php on line 2574
警告：strpos()：第 2574 行的 ......popularity-contest.php 中的空针
function akpc_is_searcher() {
global $akpc;
$referrer = parse_url($_SERVER['HTTP_REFERER']);
$searchers = explode(' ', preg_replace("\n|\r|\r\n|\n\r", ' ', $akpc->searcher_names));
foreach ($searchers as $searcher) {
if (strpos($referrer['host'], $searcher) !== false) {
return true;
}
}
return false;
}
Can someone please help me to fix this problem?
有人可以帮我解决这个问题吗？
采纳答案by Vlad Cazacu
The warning should go away if you set WP_DEBUG to false in wp_config.php. If you want to fix it, try the following:
如果您在 wp_config.php 中将 WP_DEBUG 设置为 false，警告应该会消失。如果您想修复它，请尝试以下操作：
function akpc_is_searcher() {
global $akpc;
$referrer = parse_url($_SERVER['HTTP_REFERER']);
$searchers = explode(' ', preg_replace("\n|\r|\r\n|\n\r", ' ', $akpc->searcher_names));
foreach ($searchers as $searcher) {
if ( ! empty($searcher) && strpos($referrer['host'], $searcher) !== false) {
return true;
}
}
return false;
}
回答by Dancrumb
A bunch of PHP search functions use the terms "needle" and "haystack" as their parameter names, indicating what is sought and where to seek it.
一堆 PHP 搜索函数使用术语“needle”和“haystack”作为它们的参数名称，指示要查找的内容以及查找的位置。
The strposfunction is such a function. "Empty needle" means that you have passed in a null or empty value as the needle to look for. This is like saying "search for nothing" which doesn't make sense to the function.
的strpos功能是这样的功能。“空针”表示您传入了一个空值或空值作为要查找的针。这就像说“什么都不搜索”对函数没有意义。
To fix this, check that the variable that you're passing in as the needle has an actual value. The emptyfunction is a good choice for that.
要解决此问题，请检查您作为针传入的变量是否具有实际值。该empty功能是一个不错的选择。
