大约有 47,000 项符合查询结果（耗时：0.0280秒） [XML]
How to loop through an associative array and get the key? [duplicate]
...do:
foreach ($arr as $key => $value) {
echo $key;
}
As described in PHP docs.
share
|
improve this answer
|
follow
|
...
Check if $_POST exists
...ugustus Francis's answer, empty() is not correct for choice #1, because in php, the string '0' is equivalent to false - and empty() returns true for all values equivalent to false. So using empty, the code would skip printing if the value was '0'. If you want to exclude the empty string, see Augustu...
Linux 进程卡住了怎么办？ - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...rocess在我们使用 Linux 系统时，如果网络或者磁盘等 I O 出问题，会发现进程卡住了，即使用 kill -9 也无法杀掉进程，很多常用的调试工具，比如 strace, pstack 等也都失灵了
在我们使用 Linux 系统时，如果网络或者磁盘等 I/O 出...
Convert one date format into another in PHP
... there a simple way to convert one date format into another date format in PHP?
15 Answers
...
为什么一般逆时针旋转是拧松？ - 杂谈 - 清泛网 - 专注C/C++及内核技术
...恢复常态，闪过长达1秒钟的不好意思，就突然好奇这个问题了。
为什么是“逆时针→开，顺时针→关”？和左右手有关吗？和人体构造有关吗？
// 搜了搜原来这种无聊的问题还真的有人问过，中英文都有
右旋螺纹与右...
解决SVN Error: Unreadable path encountered; access denied; - 更多技术 ...
解决SVN Error: Unreadable path encountered; access denied;问题原因同《解决TortoiseSVN出错：svn there has been a problem contacting the server》解决方法：[代码仓库目录] conf svnserve.confanon-access =noneOK，无需重启即刻生效。问题原因同《解决TortoiseSVN出...
What does the variable $this mean in PHP?
I see the variable $this in PHP all the time and I have no idea what it's used for. I've never personally used it.
10 An...
How to convert array to SimpleXML
How can I convert an array to a SimpleXML object in PHP?
33 Answers
33
...
php 实时显示当前时间 - 更多技术 - 清泛网 - 专注C/C++及内核技术
php 实时显示当前时间网上找了许多办法都行不通，经过半天的折腾。终于弄出来下面能够实时显示当前时间，代码如下：<?php ob_end_flush(); 关闭php缓存，或...网上找了许多办法都行不通，经过半天的折腾。终于弄出来下面能够...
How to create an array for JSON using PHP?
From PHP code I want to create an json array:
10 Answers
10
...