php文件操作函数详解
在php中提供了大量的对文件操作的函数,下面我来给大家总结php 文件函数对文件读入,写入操作,有需了解的这些函数的朋友可进入参考。
一、操作文件,获取文件信息
代码如下 | 复制代码 |
//打开文件 "; print_r($file_info); echo " Copy after login
//单个的取出 }else{ |
2、第二种获取文件信息方式
代码如下 | 复制代码 |
//第二种获取文件信息 echo " //echo " |
二、读取文件操作
代码如下 | 复制代码 |
//读取文件 if(!file_exists($file_path)){ fclose($fp);
|
2、第二种读取文件的方式
代码如下 | 复制代码 |
$file_path="text.txt"; $content=str_replace("rn","
|
3、第三种读取方法,循环读取(对付大文件)
代码如下 | 复制代码 |
$file_path="text.txt"; //打开文件 fclose($fp);
|
4、文件读取实际应用:当我们连接数据库的时候,可以把指定的数据配置到一个文件中,然后再PHP运行时,实时获取信息
代码如下 | 复制代码 |
db.ini 文件 host=127.0.0.1 |
获取文件
代码如下 | 复制代码 |
$arr=parse_ini_file("db.ini"); "; print_r($arr); echo " Copy after login echo $arr['host'];
//连接数据库 if(!$conn){ echo "OK"; |
三、写文件
代码如下 | 复制代码 |
//写文件 $fp=fopen($file_path,"w+"); echo "添加成功"; |
2、第二中方式 通过file_put_contents函数
代码如下 | 复制代码 |
//将一个字符串写入文件 默认是【FILE_USE_INCLUDE_PATH 】"w+"重新写入 echo "OK"; |

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