How to write into a file in PHP?
The fwrite function is used in PHP to write to a file. It is overloaded, which means that it accepts various data types, such as string, integer, floating point,s, and more. In our example, we will show you how to use this function to write into a file in PHP. Writing information into a file on the server can be done by using the fwrite function.
file_put_contents php json file
By Waved Albatross
on Nov 10, 2019
$data[] = $_POST['data'];
$inp = file_get_contents('results.json');
$tempArray = json_decode($inp);
array_push($tempArray, $data);
$jsonData = json_encode($tempArray);
file_put_contents('results.json', $jsonData);
2
stristr php
By Joyous Jaguar
on Apr 06, 2020
<?php
$string = 'Hello World!';
if(stristr($string, 'terre') === FALSE) {
echo '"terre" non trouvé dans la chaîne de caractères';
}
// affiche : "terre" non trouvé dans la chaîne de caractères
?>
1
php superglobals
By JSMD
on May 13, 2020
#Superglobal
$_SERVER Superglobal
Superglobals were introduced in PHP 4.1.0, and are built-in variables
that are always available in all scopes. Basically system variables.
https://www.w3schools.com/php/php_superglobals.asp
Note: $_SERVER Superglobal -- tells a little about the server and
the client
==============
#Example index.php
<?php include 'server-info.php';?>
<!DOCTYPE html>
<html>
<head>
<title>System Info</title>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
</head>
<body>
<div class ="container">
<h1>Server & File Info</h1>
<?php if($server): ?>
<ul class="list-group">
<?php foreach($server as $key => $value): ?>
<li class="list-group-item">
<strong><?php echo $key; ?>: </strong>
<?php echo $value; ?>
</li>
<?php endforeach; ?>
</ul>
<?php endif; ?>
<h1>Client Info</h1>
<?php if($client): ?>
<ul class="list-group">
<?php foreach($client as $key1 => $value1): ?>
<li class="list-group-item">
<strong><?php echo $key1; ?>: </strong>
<?php echo $value1; ?>
</li>
<?php endforeach; ?>
</ul>
<?php endif; ?>
</body>
</html>
==================
#Example server-info.php
<?php
# $_SERVER SUPERGLOBAL
//Create Server Array
$server =[
'Host Server Name' => $_SERVER['SERVER_NAME'],
'Http Host' => $_SERVER['HTTP_HOST'],
'Server Software' => $_SERVER['SERVER_SOFTWARE'],
'Document Root' => $_SERVER['DOCUMENT_ROOT'],
'Current Page' => $_SERVER['PHP_SELF'],
'Script Name' => $_SERVER['SCRIPT_NAME'],
'Absloute Path' => $_SERVER['SCRIPT_FILENAME']
];
echo $server['Host Server Name'];
echo $server['Http Host'];
echo $server['Server Software'];
echo $server['Document Root'];
echo $server['Current Page'];
echo $server['Script Name'];
echo '<br>';
//also can show it all
print_r($server);
//Creat Client Array
$client = [
'Client System Info' => $_SERVER['HTTP_USER_AGENT'],
'Client IP' => $_SERVER['REMOTE_ADDR'],
'Remote Port' => $_SERVER['REMOTE_PORT']
];
echo '<br>';
echo '<br>';
print_r($client);
?>
2
php file_put_contents
By Xediri
on Jun 11, 2020
file_put_contents ($filename, $data, $flags = 0, $context = null): int
3
The function will accept three arguments - filename, data to write, and length of said data, it can return a value of true or false depending on whether it was successful or not.
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