大约有 46,000 项符合查询结果（耗时：0.0316秒） [XML]
Why check both isset() and !empty()
... @karim IMO empty is one of the most misunderstood functions in PHP. The tiny snippet about "no warning is generated" is very easy to overlook. I had to scan the documentation myself a few times to spot it to post it here.
– deceze♦
Dec 30 '10 at 4...
BIO与NIO、AIO的区别(这个容易理解) - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...于事件驱动思想来完成的，其主要想解决的是BIO的大并发问题： 在使用同步I/O的网络应用中，如果要同时处理多个客户端请求，或是在客户端要同时和多个服务器进行通讯，就必须使用多线程来处理。也就是说，将每一个客户...
What is the difference between is_a and instanceof?
...
Update
As of PHP 5.3.9, the functionality of is_a() has changed. The original answer below states that is_a() must accept an Object as the first argument, but PHP versions >= 5.3.9 now accept an optional third boolean argument $allow_s...
PHP DOMDocument errors/warnings on html5-tags
...e so I can set attributes/values within the code, but it seems DOMDocument(PHP5.3) doesn't support tags like <nav> and <section> .
...
How does PHP 'foreach' actually work?
...s significantly more complicated. First of all, it should be noted that in PHP "arrays" are really ordered dictionaries and they will be traversed according to this order (which matches the insertion order as long as you didn't use something like sort). This is opposed to iterating by the natural or...
Multiple file upload in php
...me[]"
Input element must have multiple="multiple" or just multiple
In your PHP file use the syntax "$_FILES['inputName']['param'][index]"
Make sure to look for empty file names and paths, the array might contain empty strings. Use array_filter() before count.
Here is a down and dirty example (sho...
How can I break an outer loop with PHP?
I am looking to break an outer for/foreach loop in PHP.
6 Answers
6
...
Illegal string offset Warning PHP
I get a strange PHP error after updating my php version to 5.4.0-3.
16 Answers
16
...
Call to undefined method mysqli_stmt::get_result
...
Please read the user notes for this method:
http://php.net/manual/en/mysqli-stmt.get-result.php
It requires the mysqlnd driver... if it isn't installed on your webspace you will have to work with BIND_RESULT & FETCH!
https://secure.php.net/manual/en/mysqli-stmt.bind-res...
How do I write unit tests in PHP? [closed]
...which is by far easier to learn - even easier than SimpleTest, it's called phpt.
A primer can be found here:
http://qa.php.net/write-test.php
Edit: Just saw your request for sample code.
Let's assume you have the following function in a file called lib.php:
<?php
function foo($bar)
{
return...