php bom去除工具,php批量去除bom的代码
php批量去除文件bom代码的功能,支持文件夹批量去除。具体php文件代码如下:
<span style="font-size: 14px;"><?php</span><br />header('content-Type: text/html; charset=utf-8');<br />$auto=1;/*设置为1标示检测BOM并去除,设置为0标示只进行BOM检测,不去除*/<br />$basedir='.';<br />$loop=true;//www.phpernote.com<br />echo '当前查找的目录为:'.$basedir.'当前的设置是:';<br />echo '(1)',$loop?'检查当前目录以及当前目录的子目录':'只针对当前目录进行检测';<br />echo '(2)',$auto?'检测文件BOM同时去除检测到BOM文件的BOM<br />':'只检测文件BOM不执行去除BOM操作<br />';<br /><br />checkdir($basedir,$loop);<br />function checkdir($basedir='',$loop=true){<br /> $basedir=empty($basedir)?'.':$basedir;<br /> if($dh=opendir($basedir)){<br /> while (($file=readdir($dh))!==false){<br /> if($file!='.'&&$file!='..'){<br /> if(!is_dir($basedir.'/'.$file)){<br /> echo '文件: '.$basedir.'/'.$file .checkBOM($basedir.'/'.$file).' <br>';<br /> }else{<br /> if(!$loop) continue;<br /> $dirname=$basedir.'/'.$file;<br /> checkdir($dirname);<br /> }<br /> }<br /> }<br /> closedir($dh);<br /> }<br />}<br />function checkBOM($filename){<br /> global $auto;<br /> $contents=file_get_contents($filename);<br /> $charset[1]=substr($contents,0,1);<br /> $charset[2]=substr($contents,1,1);<br /> $charset[3]=substr($contents,2,1);<br /> if(ord($charset[1])==239&&ord($charset[2])==187&&ord($charset[3])==191){<br /> if($auto==1){<br /> $rest=substr($contents,3);<br /> rewrite($filename,$rest);<br /> return (' <font color=red>找到BOM并已自动去除</font>');<br /> }else{<br /> return (' <font color=red>找到BOM</font>');<br /> }<br /> }else{<br /> return (' 没有找到BOM');<br /> }<br />}<br />function rewrite($filename,$data){<br /> $filenum=fopen($filename,'w');<br /> flock($filenum,LOCK_EX);<br /> fwrite($filenum,$data);<br /> fclose($filenum);<br /><p>}<span style="font-size: 14px;">
将以上代码保存为后缀为php的文件放到需要去除bom的文件目录里面,然后运行该php文件,将会对该目录以及该目录所有的子目录下的文件进行bom检查并去除bom,运行结果页面如下:

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In PHP, use the clone keyword to create a copy of the object and customize the cloning behavior through the \_\_clone magic method. 1. Use the clone keyword to make a shallow copy, cloning the object's properties but not the object's properties. 2. The \_\_clone method can deeply copy nested objects to avoid shallow copying problems. 3. Pay attention to avoid circular references and performance problems in cloning, and optimize cloning operations to improve efficiency.

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PHP is a server-side scripting language used for dynamic web development and server-side applications. 1.PHP is an interpreted language that does not require compilation and is suitable for rapid development. 2. PHP code is embedded in HTML, making it easy to develop web pages. 3. PHP processes server-side logic, generates HTML output, and supports user interaction and data processing. 4. PHP can interact with the database, process form submission, and execute server-side tasks.

PHP has shaped the network over the past few decades and will continue to play an important role in web development. 1) PHP originated in 1994 and has become the first choice for developers due to its ease of use and seamless integration with MySQL. 2) Its core functions include generating dynamic content and integrating with the database, allowing the website to be updated in real time and displayed in personalized manner. 3) The wide application and ecosystem of PHP have driven its long-term impact, but it also faces version updates and security challenges. 4) Performance improvements in recent years, such as the release of PHP7, enable it to compete with modern languages. 5) In the future, PHP needs to deal with new challenges such as containerization and microservices, but its flexibility and active community make it adaptable.

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