<?php
/**
* 把数组和字符串写入文件函数
*
* @param array or int string  $everything
* @param string $path
*/
function array2log($everything,$path = "/tmp/array2log.txt")
{
  if(is_array($everything))
  {
    $everything = var_export ( $everything,True);      
  }
  $return = file_put_contents($path,$everything,FILE_APPEND);  
}
$array = array("dfdfdf","dfdfdfdf","dfdf");
array2log($array);
?>

[root@vm0000055 ~]# tail -f /tmp/array2log.txt
array (
  0 => 'dfdfdf',
  1 => 'dfdfdfdf',
  2 => 'dfdf',
)




array (
  0 => 'dfdfdf',
  1 => 'dfdfdfdf',
  2 => 'dfdf',
)