Legacy PHP - Revision history

Paul at 09:00, 31 March 2020

2020-03-31T09:00:04Z

← Older revision		Revision as of 09:00, 31 March 2020
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			== Move code into version control ==

			Before making any changes, move the code into a version control system. Git is the only sensible choice nowadays, due to support and developer experience.

			== Automatic deployment ==

			Although not strictly related to code, having a mechanism for automatically deploying changes (once code is in version control) will save huge amounts of time, especially as you will need to deploy frequent small changes.

	== Converting classes to PSR-0 ==		== Converting classes to PSR-0 ==

2020-03-24T19:17:43Z

← Older revision		Revision as of 19:17, 24 March 2020
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	}		}
	}		}

			== Additional steps ==

			* Remove use of <code>new</code>
			* Remove embedded SQL statements
			* Remove presentation logic (e.g. <code>if ($user->logged_in)</code>)
			* Add a router and front controller

	[[Category:PHP]]		[[Category:PHP]]

2020-03-24T19:11:01Z

Converting globals to injected dependencies

2020-03-24T19:10:47Z

Converting globals to injected dependencies

← Older revision		Revision as of 19:10, 24 March 2020
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	== Converting globals to injected dependencies ==		== Converting globals to injected dependencies ==

			Instead of:

			class Example {
			public function foo() {
			global $db;
			$row = $db->fetch();
			}
			}

			Use:

			class Example {
			public function __construct($db) {
			$this->db = $db;
			}

			public function foo() {
			$row = $this->db->fetch();
			}
			}

	[[Category:PHP]]		[[Category:PHP]]

2020-03-24T19:05:01Z

← Older revision		Revision as of 19:05, 24 March 2020
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	Initially pages will pick up <code>Example_My_Class</code> via including <code>Example_My_Class.php</code>, which in turn includes <code>Example/My/Class.php</code>. Once every file has been migrated to autoloading, <code>Example_My_Class.php</code> can be removed.		Initially pages will pick up <code>Example_My_Class</code> via including <code>Example_My_Class.php</code>, which in turn includes <code>Example/My/Class.php</code>. Once every file has been migrated to autoloading, <code>Example_My_Class.php</code> can be removed.

			== Converting globals to injected dependencies ==



	[[Category:PHP]]		[[Category:PHP]]

2020-03-24T18:59:40Z

Converting classes to PSR-0

← Older revision		Revision as of 18:59, 24 March 2020
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	<code>Vendor\Package_Name\Class_Name</code> maps to: <code>Vendor/Package_Name/Class/Name.php</code>		<code>Vendor\Package_Name\Class_Name</code> maps to: <code>Vendor/Package_Name/Class/Name.php</code>

			== Moving to autoloaders ==

			Easiest way to do this is to move the class name to PSR-0 and then have the original class file include the autoloaded file. This allows a gradual migration to autoloading.

			For example, initial starting point:

			page.php:
			require_once 'Example_My_Class.php';
			$my_class = new Example_My_Class();

			Example_My_Class.php:
			class Example_My_Class {}

			Change to:

			page.php
			$my_class = new Example_My_Class();

			Example/My/Class.php:
			class Example_My_Class.php

			Example_My_Class.php
			require_once 'Example/My/Class.php

			Initially pages will pick up <code>Example_My_Class</code> via including <code>Example_My_Class.php</code>, which in turn includes <code>Example/My/Class.php</code>. Once every file has been migrated to autoloading, <code>Example_My_Class.php</code> can be removed.

	[[Category:PHP]]		[[Category:PHP]]

2020-03-24T18:45:54Z

Converting classes to PSR-0

← Older revision		Revision as of 18:45, 24 March 2020
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	PSR-0 autoloading uses file and class naming conventions to map a class to a file path.		PSR-0 autoloading uses file and class naming conventions to map a class to a file path.

			* Namespace separators map to directory separators.
			* Class name underscores map to directory separators.

	<code>Vendor\Package_Name\Class_Name</code> maps to: <code>Vendor/Package_Name/Class/Name.php</code>		<code>Vendor\Package_Name\Class_Name</code> maps to: <code>Vendor/Package_Name/Class/Name.php</code>

	[[Category:PHP]]		[[Category:PHP]]

2020-03-24T18:42:58Z

Converting classes to PSR-0

← Older revision		Revision as of 18:42, 24 March 2020
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	PSR-0 autoloading uses file and class naming conventions to map a class to a file path.		PSR-0 autoloading uses file and class naming conventions to map a class to a file path.

	Vendor\Package_Name\Class_Name		<code>Vendor\Package_Name\Class_Name</code> maps to: <code>Vendor/Package_Name/Class/Name.php</code>
	Vendor/Package_Name/Class/Name.php

	[[Category:PHP]]		[[Category:PHP]]

2020-03-24T18:42:36Z

← Older revision		Revision as of 18:42, 24 March 2020
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			== Converting classes to PSR-0 ==

			PSR-0 autoloading uses file and class naming conventions to map a class to a file path.

			Vendor\Package_Name\Class_Name
			Vendor/Package_Name/Class/Name.php

	[[Category:PHP]]		[[Category:PHP]]

2018-05-29T10:19:28Z

Created page with " Category:PHP"

New page

[[Category:PHP]]