{"id":24191,"date":"2022-05-26T13:23:42","date_gmt":"2022-05-26T13:23:42","guid":{"rendered":"https:\/\/www.heartinternet.uk\/blog\/?p=24191"},"modified":"2022-05-26T13:23:42","modified_gmt":"2022-05-26T13:23:42","slug":"why-is-it-important-to-keep-your-php-up-to-date","status":"publish","type":"post","link":"https:\/\/www.heartinternet.uk\/blog\/why-is-it-important-to-keep-your-php-up-to-date\/","title":{"rendered":"Why is it important to keep your PHP up to date?"},"content":{"rendered":"<p><span data-contrast=\"auto\">What\u2019s on your to-do list for today? Buying milk? Finishing a presentation? Picking the kids up from school?<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">How about updating your website\u2019s PHP version?<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">If you answered yes to the last question, you\u2019ll be in the minority.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">You shouldn\u2019t be though. Keeping PHP up to date is an essential task for website owners around the world.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">In this article, we look at why it\u2019s so important and what could happen if you leave it too late to update.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><b><span data-contrast=\"auto\">What is PHP?<\/span><\/b><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">Used as an acronym for \u2018Hypertext Preprocessor\u2019, PHP is one of the most popular scripting languages used on the web today and it\u2019s used to create dynamic interactive websites and apps.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><a href=\"https:\/\/w3techs.com\/technologies\/details\/pl-php\"><span data-contrast=\"none\">Statistics<\/span><\/a><span data-contrast=\"auto\"> suggest that as many as 77.4% of the world\u2019s websites use PHP, including Facebook, Wikipedia, Zoom and Instagram.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">PHP is also essential to the functioning of all WordPress websites around the world.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">You\u2019ll often hear PHP described as a server-side language, as it runs on your web hosting server.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">WordPress Beginner explains nicely: \u2018Whenever someone visits your website, their browser contacts your server to request the page. The PHP code runs on the server, and generates an HTML page to send to the visitor. The visitor then sees the HTML page in their browser. They can\u2019t see the PHP script because it\u2019s only on the hosting server\u2019.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><b><span data-contrast=\"auto\">What is a PHP version?<\/span><\/b><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">Since creator Rasmus Lerdorf began developing PHP back in 1994, the programming language has continued to evolve and grow.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">Since the early days, more than 20 major versions have been created, with each new version being more secure and feature-filled than the last.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><i><span data-contrast=\"auto\">FUN FACT: PHP 6 was never released so versions skip straight from 5.6 to 7.<\/span><\/i><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">Today, each new PHP version is fully supported for two years. In this two-year period, both bugs and security issues are regularly fixed and patched.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">You can keep up to date on all the latest releases (both the major ones and the minor ones that are released to target specific bugs and glitches) on the <\/span><a href=\"https:\/\/www.php.net\/\"><span data-contrast=\"none\">php.net website<\/span><\/a><span data-contrast=\"auto\">.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">In year three, only critical security issues are fixed for PHP versions. In year four, the PHP version reaches its \u2018end of life\u2019 and security vulnerabilities are no longer fixed.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><b><span data-contrast=\"auto\">How many people are using out of date PHP?<\/span><\/b><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">At the time of publishing, 8.1 is the latest version of PHP and versions 7.3 and below have reached their end of life.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">Yet <\/span><a href=\"https:\/\/wordpress.org\/about\/stats\/\"><span data-contrast=\"none\">statistics from WordPress<\/span><\/a><span data-contrast=\"auto\"> show that 41.1% of users were still using PHP versions 7.3 or lower.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">Shockingly, these same statistics show that 15.2% of people are still using a PHP version below 5.6, which reached its end of life in 2018.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><b><span data-contrast=\"auto\">3 reasons you should update your PHP<\/span><\/b><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<ol>\n<li data-leveltext=\"%1.\" data-font=\"Calibri\" data-listid=\"2\" data-list-defn-props=\"{&quot;335552541&quot;:0,&quot;335559684&quot;:-1,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769242&quot;:[65533,0],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;%1.&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"1\" data-aria-level=\"1\"><b><span data-contrast=\"auto\">Security<\/span><\/b><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<\/ol>\n<p><span data-contrast=\"auto\">As mentioned above, each version of PHP is supported for two years and during this time all bugs and security issues are addressed and fixed.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">In year three, only critical security issues are fixed. In year four, the PHP version reaches its \u2018end of life\u2019 and security vulnerabilities are no longer addressed.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">So, after the first two years PHP versions become increasingly more vulnerable to cyber attackers.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">Cyber attackers know this all too well and in 2019, <\/span><a href=\"https:\/\/www.verdict.co.uk\/php-attacks\/\"><span data-contrast=\"none\">one report<\/span><\/a><span data-contrast=\"auto\"> suggested that PHP was the target of 81% of the world\u2019s malicious traffic.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<ol>\n<li data-leveltext=\"%1.\" data-font=\"Calibri\" data-listid=\"2\" data-list-defn-props=\"{&quot;335552541&quot;:0,&quot;335559684&quot;:-1,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769242&quot;:[65533,0],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;%1.&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"2\" data-aria-level=\"1\"><b><span data-contrast=\"auto\">Performance<\/span><\/b><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<\/ol>\n<p><span data-contrast=\"auto\">Every new PHP release comes with a host of improvements that usually have a positive impact on performance.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">For example, back in 2019, a study showed that when PHP 7 ran on WordPress 4.1.1, it could execute twice as many requests per second as the same platform running PHP 5.6.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<ol>\n<li data-leveltext=\"%1.\" data-font=\"Calibri\" data-listid=\"2\" data-list-defn-props=\"{&quot;335552541&quot;:0,&quot;335559684&quot;:-1,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769242&quot;:[65533,0],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;%1.&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"3\" data-aria-level=\"1\"><b><span data-contrast=\"auto\">Functionality<\/span><\/b><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<\/ol>\n<p><span data-contrast=\"auto\">New PHP releases often come with new or improved functionality and features.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">For example, between the releases of PHP 5.2 and 7.4 more than 20 major improvements were made.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><b><span data-contrast=\"auto\">How to update your PHP<\/span><\/b><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">At Heart Internet we are currently advising all our Managed WordPress customers, who are currently running a PHP version of 7.3 or below, to update their PHP to the highest possible version their site can support.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">You can find out all about how to do this on our <\/span><a href=\"https:\/\/www.heartinternet.uk\/support\/article\/php-version-retirement-on-managed-wordpress-frequently-asked-questions.html\"><span data-contrast=\"none\">FAQ pages<\/span><\/a><span data-contrast=\"auto\">.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In this article, we look at why it\u2019s so important and what could happen if you leave it too late to update.\u00a0\u00a0<\/p>\n","protected":false},"author":4,"featured_media":24193,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24,25,27,29],"tags":[],"class_list":{"0":"post-24191","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-web-design","8":"category-web-hosting","9":"category-wordpress","10":"category-your-website"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Why is it important to keep your PHP up to date? - Heart Internet<\/title>\n<meta name=\"description\" content=\"Why is it important to keep your PHP up to date? - Written by the team at Heart Internet.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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