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PHP basic learning includes require, include
- 不言Original
- 2018-04-24 14:04:181291browse
The main content of this article is about the basic learning of PHP including require and include. It has a certain reference value. Now I share it with you. Friends in need can refer to it
In PHP , you can insert the contents of another file into a PHP file before it is executed by the server.
a.php:
<?php
/**
* Created by PhpStorm.
* User: Administrator
* Date: 2018/4/23
* Time: 13:03
*/
echo "123<br>";
$arr = array("php" => array("Tom", "123456"), "google" => array("Jake", "456123"), "taobao" => array("Lili", "789456"));
b.php:
<?php
/**
* Created by PhpStorm.
* User: Administrator
* Date: 2018/4/23
* Time: 13:08
*/
require "a.php";
//require_once "a.php";
//require_once(realpath("./")."/a.php");
//require_once(realpath("../")."/require/a.php");
//echo realpath("./");
//echo realpath("../");
print("<pre class="brush:php;toolbar:false">");
// 格式化输出数组
print_r($arr);
print("");
Output result:
include and require are identical except for how they handle errors:
require Generates a fatal error (E_COMPILE_ERROR), after which the script will stop executing.
include generates a warning (E_WARNING) and the script will continue execution after the error occurs.
is equivalent to copying the code of the a.php file into b.php. Similar methods include require_once(), include(), and include_once(). The methods with the word _once are declared to be loaded only once, because your require_once() file may already require_once(a.php). , if it is loaded again, it will cause repeated loading.
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