PHP stat()用法及代码示例

stat() 函数可以返回有关文件的信息。

用法

array stat ( string $filename )

该函数可以收集以文件名命名的文件的统计信息。如果文件名是符号链接，则统计信息来自文件本身，而不是符号链接。 lstat() 函数与 stat() 函数相同，只是它可以基于符号链接状态。

示例1

<?php
   $stat = stat("/PhpProject/sample.txt");  // Get file stat 

   echo "Acces time:" .$stat["atime"];    // Print file access time, this is the same as calling fileatime()  
   echo "\nModification time:" .$stat["mtime"];  //Print file modification time, this is the same as calling filemtime()
   echo "\nDevice number:" .$stat["dev"];  //  Print the device number
?>

输出

Acces time:1590217956
Modification time:1591617832
Device number:1245376677

示例2

<?php
   $stat = stat("/PhpProject/sample.txt");
   
   if(!$stat) {
      echo "stat() call failed...";
   } else {
      $atime = $stat["atime"] + 604800;

   if(!touch("/PhpProject1/sampl2.txt", time(), $atime)) {
      echo "failed to touch file...";
   } else {
      echo "touch() returned success...";
   }
?>

输出

touch() returned success...