PHP - Does Require/include Cache The Document?

Hello.

Include is identical to require, only require stops any further script execution.

Just wondering if anyone could give me a good example, where 'require' should be used instead 'include'.

Thanks.

Why would I want to use include() vs. require() ??

(It seems like most people use "include()", but I would think "require()" would be better/safer...)


TomTees

Hello,


I have a small and annoying problem. Imagine that I have a main folder on my FTP server which has index.php and I then have a php folder for all of my small scripts and an includes folder for misc files. So, for instance

http://www.somedomain.com/index.php
http://www.somedomain.com/php/somescript.php
http://www.somedomain.com/includes/somefile.html

Inside somescript.php, I need to use one of the files from the includes folder, like this for example:

require('../includes/somefile.html');

This is all fine, but the problem is when I include the PHP file on my index.php page. Then I am telling PHP to go one step back to find the includes folder, but the problem is that it only needs to go one step back if it PHP script is not included on some page outside of the php folder. If I run php/somescript.php, there is no problem, but if I include php/somescript.php on my index.php, then there is trouble!

I hope you guys understand what I mean.

Thanks in advance!

PS - I would appreciate if the solution is not about moving php/somescript.php or using full URLs in my includes.

I am very confused in between these three terms INCLUDE, REQUIRE, HEADER...

Can anyone tell me the difference between these three terms...

I just want to run a php file in the if condition..

Basically i do not want to open i just want to run ...

for ex.

Code: [Select]
<?php
if(condition)
{
// run mail.php file
}
?>

Php Folks,

As you know, typing the same code over and over again on all files is daunting.

I was wondering, if I can have an error_reporting.php file and then put:

 

include('error_reporting.php');

 

at the top of all my php files as header, where the error_reporting.php would have this content:

	<?php
	error_reporting(E_ALL);
ini_set('error_reporting','E_ALL');
ini_set('display_errors','1');
ini_set('display_startup_errors','1');
?>
	

Q1. Is that ok or not ?

 

Q2.

Usually, I have a conn.php with content like this:

	<?php
	$conn = mysqli_connect("localhost","root","","db_database");
$db_server = 'localhost';
$db_user = 'root';
$db_password = '';
$db_database = 'test';
$conn->set_charset('utf8mb4');//Always use Charset.
	if (!$conn)
{
    //Error Message to show user in technical/development mode to see errors.
    die("Database Error : " . mysqli_error($conn));
    
    //Error Message to show User in Layman's mode to see errors.
    die("Database error.");
    exit();
}
	?>
	

 

And then, on all my php files, I just reference to the conn.php by putting the following line on the header:

	include('conn.php');
	

 

Or:

 

	require('conn.php');
	

 

And on each php file, just before dealing with mysql, I have a line like this:

	mysqli_report(MYSQLI_REPORT_ALL|MYSQLI_REPORT_STRICT);
$conn->set_charset("utf8mb4");
	

Now, I am wondering, why should I write the above 2 lines on all my php files that deal with mysql ? To keep things short, why don;t I just add those 2 lines in the error_reporting.php ? So, it looks like this:

 

error_reporting.php

	<?php
ini_set('error_reporting','E_ALL');//error_reporting(E_ALL);
ini_set('display_errors','1');
ini_set('display_startup_errors','1');
	mysqli_report(MYSQLI_REPORT_ALL|MYSQLI_REPORT_STRICT);
$conn->set_charset("utf8mb4");
?>
	

Shall I do this or not ?

Edited July 17, 2020 by 2020