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php读取文件内容的三种方法

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Release: 2016-06-13 09:43:42
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 这篇文章主要介绍了php读取文件内容的三种方法,需要的朋友可以参考下

php读取文件内容的三种方法:    //**************第一种读取方式*****************************  代码如下: header("content-type:text/html;charset=utf-8");  //文件路径  $file_path="text.txt";  //判断是否有这个文件  if(file_exists($file_path)){  if($fp=fopen($file_path,"a+")){  //读取文件  $conn=fread($fp,filesize($file_path));  //替换字符串  $conn=str_replace("\r\n","
",$conn);  echo $conn."
";  }else{  echo "文件打不开";  }  }else{  echo "没有这个文件";  }  fclose($fp);    //*******************第二种读取方式***************************   代码如下: header("content-type:text/html;charset=utf-8");  //文件路径  $file_path="text.txt";  $conn=file_get_contents($file_path);  $conn=str_replace("\r\n","
",file_get_contents($file_path));  echo $conn;  fclose($fp);    //******************第三种读取方式,循环读取*****************   代码如下: header("content-type:text/html;charset=utf-8");  //文件路径  $file_path="text.txt";  //判断文件是否存在  if(file_exists($file_path)){  //判断文件是否能打开  if($fp=fopen($file_path,"a+")){  $buffer=1024;  //边读边判断是否到了文件末尾  $str="";  while(!feof($fp)){  $str.=fread($fp,$buffer);  }  }else{  echo "文件不能打开";  }  }else{  echo "没有这个文件";  }  //替换字符  $str=str_replace("\r\n","
",$str);  echo $str;  fclose($fp);  读取INI配置文件的函数:  $arr=parse_ini_file("config.ini");  //返回的是数组  echo $arr['host']."
";  echo $arr['username']."
";  echo $arr['password']."
";   
source:php.cn
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