PHP create text file on server

Question

In my php application i want to create a error log in a text format so tried like this its working fine in my local machine

if(!$mail->Send())
{
 echo \"Mess         


        

Answer 1

You may check whether file (or rather parent directory) is writeable before trying to create file.

And according to php manual fopen():

Returns a file pointer resource on success, or FALSE on error.

So you could use this + $php_errormsg or get_last_error() to build correct file writing code:

$fp = fopen($_SERVER['DOCUMENT_ROOT']."/lib/email_errorlog.txt","wb");
if( $fp === false){
    // Notification about failed opening
    echo "Cannot open file: " + $php_errormsg; // Not that wise in production
    exit();
}

fwrite($fp,$stringData);
fclose($fp);
exit();

But with correct configuration all errors should be in error log.