1. 转换 URL:从字符串变成超链接
如果你正在开发论坛,博客或者是一个常规的表单提交,很多时候都要用户访问一个网站。使用这个函数,URL 字符串就可以自动的转换为超链接。
makeClickableLinks( = ('(((f|ht){1}tp://)[-a-zA-Z0-9@:%_+.~#?&//=]+)','', = ('([[:space:]()[{}])(www.[-a-zA-Z0-9@:%_+.~#?&//=]+)','\1', = ('([_.0-9a-z-]+@([0-9a-z][0-9a-z-]+.)+[a-z]{2,3})','',<span style="color: #0000ff">return <span style="color: #800080">$text<span style="color: #000000">;
}
}
语法:
= "This is my first post on http://blog.koonk.com" = makeClickableLinks( ?>
2. 阻止多个 IP 访问你的网站
这个代码片段可以方便你禁止某些特定的 IP 地址访问你的网站。
( !('blocked_ips.txt' = '127.0.0.1','192.168.1.1','83.76.27.9','192.168.1.163' = ('blocked_ips.txt'
= (['REMOTE_ADDR']) ? (['REMOTE_ADDR']) : ''<span style="color: #008000">//<span style="color: #008000"> search current IP in $deny_ips array
<span style="color: #0000ff">if ( (<span style="color: #008080">array_search(<span style="color: #800080">$ip,<span style="color: #800080">$deny_ips))!== <span style="color: #0000ff">FALSE<span style="color: #000000"> ) {
<span style="color: #008000">//<span style="color: #008000"> address is blocked:
<span style="color: #0000ff">echo 'Your IP adress ('.<span style="color: #800080">$ip.') was blocked!'<span style="color: #000000">;
<span style="color: #0000ff">exit<span style="color: #000000">;
}
<span style="color: #0000ff">if ( (<span style="color: #008080">array_search(<span style="color: #800080">$ip,<span style="color: #800080">$deny_ips))!== <span style="color: #0000ff">FALSE<span style="color: #000000"> ) {
<span style="color: #008000">//<span style="color: #008000"> address is blocked:
<span style="color: #0000ff">echo 'Your IP adress ('.<span style="color: #800080">$ip.') was blocked!'<span style="color: #000000">;
<span style="color: #0000ff">exit<span style="color: #000000">;
}
3. 强制性文件下载
如果你需要下载特定的文件而不用另开新窗口,下面的代码片段可以帮助你。
force_download( = "../log/exports/" ((())&&((.("Content-type: application/force-download"('Content-Disposition: inline; filename="' . . . '"'("Content-Transfer-Encoding: Binary"("Content-length: ".(.('Content-Type: application/octet-stream'('Content-Disposition: attachment; filename="' . . '"'("" "No file selected"
语法:
<"image.jpg"?>
4. 创建 JSON 数据
使用下面的 PHP 片段可以创建 JSON 数据,可以方便你创建移动应用的 Web 服务。
= ('id'=>1,'name'=>"Mohit" json_encode();
5. 压缩 zip 文件
使用下面的 PHP 片段可以即时压缩 zip 文件。
create_zip( = (), = '', =
(() && !) {
=
((
(
(([] =
((
= (->open(, ? ZIPARCHIVE::OVERWRITE : ZIPARCHIVE::CREATE) !==
( ->addFile(,numFiles,' files with a status of ',$zip->status;
//close the zip -- done! </span>
<span style="color: #800080">$zip</span>-><span style="color: #000000">close();
</span><span style="color: #008000">//</span><span style="color: #008000">check to make sure the file exists </span>
<span style="color: #0000ff">return</span> <span style="color: #008080">file_exists</span>(<span style="color: #800080">$destination</span><span style="color: #000000">);
}
</span><span style="color: #0000ff">else</span><span style="color: #000000">
{
</span><span style="color: #0000ff">return</span> <span style="color: #0000ff">false</span><span style="color: #000000">;
}
}
语法:
=('file1.jpg','file2.jpg','file3.gif','myzipfile.zip',?>
6. 解压文件
unzip(,(("unzip ",(( = 1;< ();++ = (("~inflating: ~","",[(.'/'.,.'/'.(.'/'.
语法:
'test.zip','unziped/test');
?>
7. 缩放图片
resize_image(,,, = (".", = [()-1
</span><span style="color: #0000ff">if</span>(<span style="color: #800080">$ext</span> == "jpg" || <span style="color: #800080">$ext</span> == "jpeg"<span style="color: #000000">)
</span><span style="color: #800080">$im</span> = imagecreatefromjpeg(<span style="color: #800080">$tmpname</span><span style="color: #000000">);
</span><span style="color: #0000ff">elseif</span>(<span style="color: #800080">$ext</span> == "png"<span style="color: #000000">)
</span><span style="color: #800080">$im</span> = imagecreatefrompng(<span style="color: #800080">$tmpname</span><span style="color: #000000">);
</span><span style="color: #0000ff">elseif</span>(<span style="color: #800080">$ext</span> == "gif"<span style="color: #000000">)
</span><span style="color: #800080">$im</span> = imagecreatefromgif(<span style="color: #800080">$tmpname</span><span style="color: #000000">);
</span><span style="color: #800080">$x</span> = imagesx(<span style="color: #800080">$im</span><span style="color: #000000">);
</span><span style="color: #800080">$y</span> = imagesy(<span style="color: #800080">$im</span><span style="color: #000000">);
</span><span style="color: #0000ff">if</span>(<span style="color: #800080">$x</span> <= <span style="color: #800080">$xmax</span> && <span style="color: #800080">$y</span> <= <span style="color: #800080">$ymax</span><span style="color: #000000">)
</span><span style="color: #0000ff">return</span> <span style="color: #800080">$im</span><span style="color: #000000">;
</span><span style="color: #0000ff">if</span>(<span style="color: #800080">$x</span> >= <span style="color: #800080">$y</span><span style="color: #000000">) {
</span><span style="color: #800080">$newx</span> = <span style="color: #800080">$xmax</span><span style="color: #000000">;
</span><span style="color: #800080">$newy</span> = <span style="color: #800080">$newx</span> * <span style="color: #800080">$y</span> / <span style="color: #800080">$x</span><span style="color: #000000">;
}
</span><span style="color: #0000ff">else</span><span style="color: #000000"> {
</span><span style="color: #800080">$newy</span> = <span style="color: #800080">$ymax</span><span style="color: #000000">;
</span><span style="color: #800080">$newx</span> = <span style="color: #800080">$x</span> / <span style="color: #800080">$y</span> * <span style="color: #800080">$newy</span><span style="color: #000000">;
}
</span><span style="color: #800080">$im2</span> = imagecreatetruecolor(<span style="color: #800080">$newx</span>,<span style="color: #800080">$newy</span><span style="color: #000000">);
imagecopyresized(</span><span style="color: #800080">$im2</span>,<span style="color: #800080">$im</span>,<span style="color: #008080">floor</span>(<span style="color: #800080">$newx</span>),<span style="color: #008080">floor</span>(<span style="color: #800080">$newy</span>),<span style="color: #800080">$x</span>,<span style="color: #800080">$y</span><span style="color: #000000">);
</span><span style="color: #0000ff">return</span> <span style="color: #800080">$im2</span><span style="color: #000000">;
}
8. 使用 mail() 发送邮件
send_mail(,, = "From: KOONK\r\n" .= "Reply-To: blog@koonk.com\r\n" .= "Return-Path: blog@koonk.com\r\n" .= "X-Mailer: PHP5\n" .= 'MIME-Version: 1.0' . "\n" .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n"(,,
语法:
= "admin@koonk.com" = "This is a test mail" = "Hello World!",?>
9. 把秒转换成天数,小时数和分钟
secsToStr((>=86400){=(/86400);=%86400;=.' day';(<>1){.='s';}(>0){.=','(>=3600){=(/3600);=%3600;.=.' hour';(<>1){.='s';}(>0){.=','(>=60){=(/60);=%60;.=.' minute';(<>1){.='s';}(>0){.=','.=.' second';(<>1){.='s'
语法:
= "56789" = secsToStr( ?>
10. 数据库连接
连接 MySQL 数据库
= 'koonk' = 'localhost' = 'root' = 'koonk' = (,,(! 'MySQL Error: '. = ((! 'MySQL Error: '.?>
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