PHP 函数stat()

stat()函数可以返回有关文件的信息。

语法

array stat ( string $filename )

此函数可收集由文件名filename指定的文件的统计信息。如果filename是一个符号链接，统计信息将来自文件本身，而不是符号链接。lstat()函数与stat()函数相同，只是它可以根据符号链接的状态进行操作。

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...