CLOSES an open file pointer.
This function should always terminate the use of the fopen function, so as not to keep any open handles.
<?php
bool fclose ( res $stream )
where,
$stream = A valid file pointer to a
successfully opened such as by the fopen function
?>
EXERCISE
<?php
define('PATN', __DIR__ . '/temp/');
$file01 = PATN . 'blahblahblah.txt';
echo $file01 . '<br><br>';
$fp01 = fopen($file01, 'r', TRUE);
var_dump($fp01);
$yn01 = fclose($fp01);
if($yn01 == TRUE)
{
echo '<br><br>File pointer is closed as desired!<br><br>';
var_dump($fp01);
}
else
{
echo '<br><br>File pointer remains opened!<br><br>';
var_dump($fp01);
}
?>
EXERCISE
<?php
define('PAW', 'file://' . __DIR__ . '/temp/');
$opts02 = [
'https'=>[
'method'=>"GET",
'header'=>"Accept-language: en\r\n" .
"Cookie: foo=bar\r\n"
] ];
$context02 = stream_context_create($opts02);
/* - - - - - - - - - - - - - - - - - - - - - - - - - -
Sends an https request to www.example.com
with additional headers shown above
- - - - - - - - - - - - - - - - - - - - - - - - - - */
echo PAW . '<br><br>';
$fp02 = fopen(PAW . '/sw7.jpg', 'r',
true, $context02);
var_dump($fp02);
$ny = fclose($fp02);
if($ny == TRUE)
{
echo '<br><br>File pointer is closed as desired!<br><br>';
var_dump($fp02);
}
else
{
echo '<br><br>File pointer remains opened!<br><br>';
var_dump($fp02);
}
?>
EXERCISE
<?php
// If PATH2N is not set Warnings
// will be issued in PHP 7.4.XX or
// a Fatal error in PHP 8.0.XX.
echo PATH2N . '<br><br>';
$file03 = PATH2N . 'blahblahbla.txt';
$fp03 = fopen($file03, 'r', TRUE);
var_dump($fp03);
$yn03 = fclose($fp03);
if($yn03 == TRUE)
{
echo '<br><br>File pointer is closed as desired!<br><br>';
var_dump($fp03);
}
else
{
echo '<br><br>File pointer remains opened or does not exist!<br><br>';
var_dump($fp03);
}
?>