TicketsCAD本地安装后登录后台出现PHP代码报错求助

Hey there! I totally get how confusing this error can be when you're not a deep-dive coder—let's fix this together simply.

What's causing the error? #

The line $j=strpos($userAgent, $navigator)+$n+strlen($navigator)+1; is trying to do math with the result of strpos(). Here's the catch: if your browser's user agent string ($userAgent) doesn't contain the text stored in $navigator, strpos() returns false instead of a number. Adding false to numbers triggers that "non-numeric value" warning in newer PHP versions.

Step-by-step fix (no advanced coding required) #

1. Open the file C:\xampp\htdocs\tickets\incs\browser.inc.php in a text editor like Notepad, Notepad++, or the editor built into XAMPP's control panel.
2. Find line 25 (the line throwing the error). Replace that single line with this code:

// Check if we found the navigator string first
$navigatorPosition = strpos($userAgent, $navigator);
if ($navigatorPosition !== false) {
    $j = $navigatorPosition + $n + strlen($navigator) + 1;
} else {
    // If we didn't find it, set a safe default value
    $j = 0;
}

3. Save the file, then refresh your browser and try logging into the admin panel again.

Why this works #

We first check if strpos() actually found the $navigator text in your browser's user agent. If it did, we run the original math calculation. If it didn't, we set $j to a safe number (0) instead of trying to add false to other values—this stops the warning from popping up entirely.

内容的提问来源于stack exchange，提问作者Jason Webb slipkid08