PHP - file_exists doesn't work even if file exists in directory

Question

Im trying to verify if file exists in directory. When I use this code it works - image is displayed:

<?php 

  $imgId=0; 
  $filename='../uploadedimages/project-'.$item->id.'-'.$imgId;

  echo "<img src='".$filename."' ></img>";

?>

When I use the same code with file_exists function, it doesn't work:

<?php 

  $imgId=0; 
  $filename='../uploadedimages/project-'.$item->id.'-'.$imgId;

  if (file_exists($filename)) {                             
    echo "<img src='".$filename."' ></img>";                
  }

?>

My question is simple: WTF??

Your documentroot is not the same as the server documentroot... So file_exists() uses the folder where the script resides in as the reference directory. Loading the <img> takes it referenced from the root of your webserver. — RichardBernards
– RichardBernards, Commented Dec 3, 2014 at 14:52
Read the "WTF" manual php.net/manual/en/function.file-exists.php ;) $filename='/var/user/you/httpdocs/uploadedimages/project... — Funk Forty Niner
– Funk Forty Niner, Commented Dec 3, 2014 at 14:54

JuanSedano · Accepted Answer · 2014-12-03 15:20:27Z

2

You can use: $_SERVER['DOCUMENT_ROOT'] to know where you are.

And then try something like this:

$filename=$_SERVER['DOCUMENT_ROOT'].'uploadedimages/project-'.$item->id.'-'.$imgId;

But first you need to make sure the path exist.

edited Dec 3, 2014 at 15:20

answered Dec 3, 2014 at 15:15

JuanSedano

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Ngurah Mantara · Accepted Answer · 2016-05-23 03:07:23Z

0

on linux server, try to change file access permission to 755 before using file_exists function

chmod 755 filename.ext

answered May 23, 2016 at 3:07

Ngurah Mantara

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