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PHP Fatal error: Using $this when not in object context
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In my index.php I'm loading maybe
foobarfunc() like this:
foobar::foobarfunc(); // Wrong, it is not static method
but can also be
$foobar = new foobar; // correct
$foobar->foobarfunc();
You can not invoke method this w...
PHP and MySQL - how to avoid password in source code? [duplicate]
I have a small PHP application storing data in a MySQL database. Currently username / password are hard-coded in the PHP code. A situation I do not really like, for example, since the code is also available in a repository.
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Wi-Fi 是什么的缩写 - 创意 - 清泛网 - 专注C/C++及内核技术
...试产品是否符合标准，导致 802.11 产品间的互通频频出现问题，而联盟的成立就是为了填补这一空缺。联盟还将推广符合 802.11 标准的无线网络技术作为己任，因此他们认为需要一个朗朗上口的名字来代替拗口的专业术语（呃…...
PHP - Move a file into a different folder on the server
... they no longer want them. I was previously using the unlink function in PHP but have since been told that this can be quite risky and a security issue. (Previous code below:)
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Get $_POST from multiple checkboxes
...ck_list'][]).
Here's a little sample as requested:
<form action="test.php" method="post">
<input type="checkbox" name="check_list[]" value="value 1">
<input type="checkbox" name="check_list[]" value="value 2">
<input type="checkbox" name="check_list[]" value="value...
How can I get enum possible values in a MySQL database?
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PHP Version: $type = $this->mysql->select("SHOW COLUMNS FROM $table WHERE Field = '$field'")[0]["Type"];
– Alessandro.Vegna
Aug 27 '1...
Java内存泄露原因详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...果不可到达，则就将其回收，这样也可以消除引用循环的问题。在Java语言中，判断一个内存空间是否符合垃圾收集标准有两个：一个是给对象赋予了空值null，以下再没有调用过，另一个是给对象赋予了新值，这样重新分配了内...
How to force a web browser NOT to cache images
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I use PHP's file modified time function, for example:
echo <img src='Images/image.png?" . filemtime('Images/image.png') . "' />";
If you change the image then the new image is used rather than the cached one, due to havi...
How can I sanitize user input with PHP?
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It's a common misconception that user input can be filtered. PHP even has a (now deprecated) "feature", called magic-quotes, that builds on this idea. It's nonsense. Forget about filtering (or cleaning, or whatever people call it).
What you should do, to avoid problems, is quite simpl...
simple explanation PHP OOP vs Procedural?
I would like to learn PHP and want to get an Idea about OOP and Procedural. I read some other blogs and tutorials about OOP vs Procedural but I still can't understand the approach.
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