php读取文件内容的方法汇总
这篇文章主要介绍了php读取文件内容的方法,实例汇总了常见的五种方法,具有一定参考借鉴价值,需要的朋友可以参考下
本文实例汇总了php读取文件内容的方法。分享给大家供大家参考。具体如下:
这里汇总php读取文件内容的五种方法。实际应用当中,请注意关闭 fclose($fp);
第一种方法:fread()
复制代码 代码如下:
$file_path = "test.txt";
if(file_exists($file_path)){
$fp = fopen($file_path,"r");
$str = fread($fp,filesize($file_path));//指定读取大小,这里把整个文件内容读取出来
echo $str = str_replace("\r\n","
",$str);
}
?>
第二种方法:
复制代码 代码如下:
$file_path = "test.txt";
if(file_exists($file_path)){
$str = file_get_contents($file_path);//将整个文件内容读入到一个字符串中
$str = str_replace("\r\n","
",$str);
echo $str;
}
?>
第三种方法:
复制代码 代码如下:
$file_path = "test.txt";
if(file_exists($file_path)){
$fp = fopen($file_path,"r");
$str = "";
$buffer = 1024;//每次读取 1024 字节
while(!feof($fp)){//循环读取,直至读取完整个文件
$str .= fread($fp,$buffer);
}
$str = str_replace("\r\n","
",$str);
echo $str;
}
?>
第四种方法:
复制代码 代码如下:
$file_path = "test.txt";
if(file_exists($file_path)){
$file_arr = file($file_path);
for($i=0;$i
";
}
/*
foreach($file_arr as $value){
echo $value."
";
}*/
}
?>
第五种方法:
复制代码 代码如下:
$file_path = "test.txt";
if(file_exists($file_path)){
$fp = fopen($file_path,"r");
$str ="";
while(!feof($fp)){
$str .= fgets($fp);//逐行读取。如果fgets不写length参数,,默认是读取1k。
}
$str = str_replace("\r\n","
",$str);
echo $str;
}
?>
希望本文所述对大家的php程序设计有所帮助。

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