PHP 处理 TXT 文件(打开/关闭/检查/读取)

php 写入 txt、php 读取 txt,在 PHP 处理 TXT 文件时经常会使用到，以下代码示例仅作参考：
<?php 

$filename

=dirname(

__FILE__

)."/readfrom.txt"; 

$ofilename

=dirname(

__FILE__

)."/writeto.txt"; 

if

(!

file_exists

(

$filename

)){ 

echo

 

$filename

." not found!"; 

exit

; 

} 

$fp

=

fopen

(

$filename

,"r"); 

$fo

 = 

fopen

(

$ofilename

,"w"); 

while

(!

feof

(

$fp

)){ 

$record

=

fgets

(

$fp

); 

if

(

$record

!=NULL){ 

$record_arr

=

explode

("\t", 

$record

); 

 
fwrite(

$fo

,

$record

,

strlen

(

$col

)); 

} 
} 
fclose(

$fo

); 

fclose(

$fp

); 

 
?>