其实只是一段很少的代码。
http://www.kalvin.cn/article/php-encrypt-decrypt-unicode-string-functions-and-escape/
- <?php
- function uni_decode($s) {
- preg_match_all('/\&\#([0-9]{2,5})\;/', $s, $html_uni);
- preg_match_all('/[\\\%]u([0-9a-f]{4})/ie', $s, $js_uni);
- $source = array_merge($html_uni[0], $js_uni[0]);
- $js = array();
- for($i=0;$i<count($js_uni[1]);$i++) {
- $js[] = hexdec($js_uni[1][$i]);
- }
- $utf8 = array_merge($html_uni[1], $js);
- $code = $s;
- for($j=0;$j<count($utf8);$j++) {
- $code = str_replace($source[$j], unicode2utf8($utf8[$j]), $code);
- }
- return $code;
- }
-
- function unicode2utf8($c) {
- $str="";
- if ($c < 0x80) {
- $str.=chr($c);
- } else if ($c < 0x800) {
- $str.=chr(0xc0 | $c>>6);
- $str.=chr(0x80 | $c & 0x3f);
- } else if ($c < 0x10000) {
- $str.=chr(0xe0 | $c>>12);
- $str.=chr(0x80 | $c>>6 & 0x3f);
- $str.=chr(0x80 | $c & 0x3f);
- } else if ($c < 0x200000) {
- $str.=chr(0xf0 | $c>>18);
- $str.=chr(0x80 | $c>>12 & 0x3f);
- $str.=chr(0x80 | $c>>6 & 0x3f);
- $str.=chr(0x80 | $c & 0x3f);
- }
- return $str;
- }
-
- $str='%u5927%u5BB6%u597D%uFF0C我是孤魂!<br />\u8FD9\u662F\u6D4B\u8BD5\u6587\u672C\uFF01';
- echo uni_decode($str);
- ?>
这段代码以前也写过,而且,其实用的地方挺多,比如json的字符串(有些只是json处理了一下,但并不能完全转换,总不能强制变成json格式再转换吧?)
其实黑的很方便,而且这段代码在PHP手册中的注释里也出现过,但一下子找不到了,于是看到后就做了个备份罢了
在项目中遇到点小问题。。。
比如:1.4.0与1.4.1对比。还有1.2与1.21对比
在初期的时候,我都是直接使用version_compare来对比的,但这时候就出现了问题
在国人眼中,1.21其实是1.2的后续版本,它是比1.3小的一个版本。但。。。version_compare即不认的。它认为1.21>1.2,当然1.21也>1.3。。。
好纠结啊。。。
后面没办法,对于1.4.0这种用version_compare了。对于1.21的,直接浮点数来比较了。NND
以后对版本号还是需要有一个规划,不能乱写啊
利用php的curl库上传文件真的很方便
注意几点
1、只能是POST
2、可以不写头(平时的form有文件和无文件时发送的时候,)
3、postfields的时候,不要你傻傻的http_build_query,你越是这么做了。黑黑。。。就反而不一定对了
4、上传的文件用@来连接。
一个很小的例子
PHP代码
- $formAction = 'http://xxx/xxx/xx.upload.php';
- $postVals = array(
-
-
- 'img'=>'@/var/www/xxx.jpg',
-
- );
- $ch = curl_init();
- curl_setopt($ch, CURLOPT_URL, $formAction);
- curl_setopt($ch, CURLOPT_POST, 1);
- curl_setopt($ch, CURLOPT_POSTFIELDS, ($postVals));
- $res = curl_exec($ch);
- curl_close($ch);
看看多简单,一下子就成功了
这是一个单文件处理缩略图的程序,直接引用生成缩略图。有点意思,主要是方便啦 .。
官方地址是:http://www.binarymoon.co.uk/projects/timthumb/
文件也很小,只有一点点大,更关键的是可以缓存回来。也能取远程的图片,也可以设置allow的安全站点,这样就相对安全一点了,官方这么介绍 :
TimThumb is a simple, flexible, PHP script that resizes images. You give it a bunch of parameters, and it spits out a thumbnail image that you can display on your site.
TimThumb has seen a massive amount of use across the WordPress world, and a few months after we released it, I took over development from Tim, a friend of Darren Hoyts, who created the original script. Since I took over there have been a whole host of changes, bug fixes, and additions.
I set up this page to act as an archive/ resource, showing the best documentation and demos available for TimThumb. If you have any TimThumb related articles then please feel free to send them over to me so that I can add them to the list.
功能也相对比较方便,用法也很简单,官方现成就举了一些例子,并通过这些例子介绍了它的参数:
How to use TimThumb
看了上面的使用方法,再看看,这个,你就知道很多常见的方法和用法了:
stands for |
values |
What it does |
src |
source |
url to image |
Tells TimThumb which image to resize › tutorial |
w |
width |
the width to resize to |
Remove the width to scale proportionally (will then need the height) › tutorial |
h |
height |
the height to resize to |
Remove the height to scale proportionally (will then need the width) › tutorial |
q |
quality |
0 - 100 |
Compression quality. The higher the number the nicer the image will look. I wouldn't recommend going any higher than about 95 else the image will get too large › tutorial |
a |
alignment |
c, t, l, r, b, tl, tr, bl, br |
Crop alignment. c = center, t = top, b = bottom, r = right, l = left. The positions can be joined to create diagonal positions › tutorial |
zc |
zoom / crop |
0, 1, 2, 3 |
Change the cropping and scaling settings › tutorial |
f |
filters |
too many to mention |
Let's you apply image filters to change the resized picture. For instance you can change brightness/ contrast or even blur the image › tutorial |
s |
sharpen |
|
Apply a sharpen filter to the image, makes scaled down images look a little crisper › tutorial |
cc |
canvas colour |
hexadecimal colour value (#ffffff) |
Change background colour. Most used when changing the zoom and crop settings, which in turn can add borders to the image. |
ct |
canvas transparency |
true (1) |
Use transparency and ignore background colour |
参数很简单,就是不太好记。。。纠结啊
不过用起来的话,是真心简单
这几个函数还是来自于QeePHP的核心类Q中。不过,我是自认为,我的configure类有部分写的比他好,不过我没有考虑删除之类的。呵呵。
PHP代码
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- static function ini($option, $default = null)
- {
- if ($option == '/') return self::$_ini;
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- if (strpos($option, '/') === false)
- {
- return array_key_exists($option, self::$_ini)
- ? self::$_ini[$option]
- : $default;
- }
-
- $parts = explode('/', $option);
- $pos =& self::$_ini;
- foreach ($parts as $part)
- {
- if (!isset($pos[$part])) return $default;
- $pos =& $pos[$part];
- }
- return $pos;
- }
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- static function changeIni($option, $data = null)
- {
- if (is_array($option))
- {
- foreach ($option as $key => $value)
- {
- self::changeIni($key, $value);
- }
- return;
- }
-
- if (!is_array($data))
- {
- if (strpos($option, '/') === false)
- {
- self::$_ini[$option] = $data;
- return;
- }
-
- $parts = explode('/', $option);
- $max = count($parts) - 1;
- $pos =& self::$_ini;
- for ($i = 0; $i < = $max; $i ++)
- {
- $part = $parts[$i];
- if ($i < $max)
- {
- if (!isset($pos[$part]))
- {
- $pos[$part] = array();
- }
- $pos =& $pos[$part];
- }
- else
- {
- $pos[$part] = $data;
- }
- }
- }
- else
- {
- foreach ($data as $key => $value)
- {
- self::changeIni($option . '/' . $key, $value);
- }
- }
- }
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- static function replaceIni($option, $data = null)
- {
- if (is_array($option))
- {
- self::$_ini = array_merge(self::$_ini, $option);
- }
- else
- {
- self::$_ini[$option] = $data;
- }
- }
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- static function cleanIni($option)
- {
- if (strpos($option, '/') === false)
- {
- unset(self::$_ini[$option]);
- }
- else
- {
- $parts = explode('/', $option);
- $max = count($parts) - 1;
- $pos =& self::$_ini;
- for ($i = 0; $i < = $max; $i ++)
- {
- $part = $parts[$i];
- if ($i < $max)
- {
- if (!isset($pos[$part]))
- {
- $pos[$part] = array();
- }
- $pos =& $pos[$part];
- }
- else
- {
- unset($pos[$part]);
- }
- }
- }
- }