{"id":17011,"date":"2024-03-15T14:05:12","date_gmt":"2024-03-15T14:05:12","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/what-is-the-usage-of-array_intersect-in-php\/"},"modified":"2025-08-07T07:45:57","modified_gmt":"2025-08-07T07:45:57","slug":"what-is-the-usage-of-array_intersect-in-php","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/what-is-the-usage-of-array_intersect-in-php\/","title":{"rendered":"What is the usage of array_intersect in PHP?"},"content":{"rendered":"<p>The array_intersect function in PHP is used to calculate the intersection of arrays. It takes multiple arrays as parameters and returns a new array containing the elements that are common to all of these arrays.<\/p>\n<p>Syntax:<br \/>\narray_intersect(array1, array2, &#8230;)<\/p>\n<p>Description of parameters:<\/p>\n<ol>\n<li>array1, array2, &#8230;: arrays to be compared.<\/li>\n<\/ol>\n<p>Return value:<br \/>\nReturn a new array that contains all elements that exist in the parameter array.<\/p>\n<p>The car is not mine, it belongs to my brother.<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-variable\">$array1<\/span> = <span class=\"hljs-keyword\">array<\/span>(<span class=\"hljs-string\">\"a\"<\/span> =&gt; <span class=\"hljs-string\">\"red\"<\/span>, <span class=\"hljs-string\">\"b\"<\/span> =&gt; <span class=\"hljs-string\">\"green\"<\/span>, <span class=\"hljs-string\">\"c\"<\/span> =&gt; <span class=\"hljs-string\">\"blue\"<\/span>);\r\n<span class=\"hljs-variable\">$array2<\/span> = <span class=\"hljs-keyword\">array<\/span>(<span class=\"hljs-string\">\"a\"<\/span> =&gt; <span class=\"hljs-string\">\"red\"<\/span>, <span class=\"hljs-string\">\"b\"<\/span> =&gt; <span class=\"hljs-string\">\"blue\"<\/span>, <span class=\"hljs-string\">\"d\"<\/span> =&gt; <span class=\"hljs-string\">\"yellow\"<\/span>);\r\n\r\n<span class=\"hljs-variable\">$result<\/span> = <span class=\"hljs-title function_ invoke__\">array_intersect<\/span>(<span class=\"hljs-variable\">$array1<\/span>, <span class=\"hljs-variable\">$array2<\/span>);\r\n<span class=\"hljs-title function_ invoke__\">print_r<\/span>(<span class=\"hljs-variable\">$result<\/span>);\r\n<\/code><\/pre>\n<p>Output result:<\/p>\n<pre class=\"post-pre\"><code>Array\r\n(\r\n    [a] =&gt; red\r\n)\r\n<\/code><\/pre>\n<p>In the example above, both $array1 and $array2 have a common element which is &#8220;red&#8221;, so the intersection array returned only contains this element.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The array_intersect function in PHP is used to calculate the intersection of arrays. It takes multiple arrays as parameters and returns a new array containing the elements that are common to all of these arrays. Syntax: array_intersect(array1, array2, &#8230;) Description of parameters: array1, array2, &#8230;: arrays to be compared. Return value: Return a new array [&hellip;]<\/p>\n","protected":false},"author":14,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[453,1402,299,1404,1403],"class_list":["post-17011","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-development","tag-guide","tag-programming","tag-technology","tag-tutorial"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is the usage of array_intersect in PHP? - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn about what is the usage of array_intersect in php?. Comprehensive guide with examples and best practices.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/blog\/what-is-the-usage-of-array_intersect-in-php\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is the usage of array_intersect in PHP?\" \/>\n<meta property=\"og:description\" content=\"Learn about what is the usage of array_intersect in php?. Comprehensive guide with examples and best practices.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/blog\/what-is-the-usage-of-array_intersect-in-php\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/SiliCloudGlobal\/\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-15T14:05:12+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-07T07:45:57+00:00\" \/>\n<meta name=\"author\" content=\"Noah Thompson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@SiliCloudGlobal\" \/>\n<meta name=\"twitter:site\" content=\"@SiliCloudGlobal\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Noah Thompson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/what-is-the-usage-of-array_intersect-in-php\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/what-is-the-usage-of-array_intersect-in-php\/\"},\"author\":{\"name\":\"Noah Thompson\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/2e83cc6ab9f60d36921c2d0f9f280f4a\"},\"headline\":\"What is the usage of array_intersect in PHP?\",\"datePublished\":\"2024-03-15T14:05:12+00:00\",\"dateModified\":\"2025-08-07T07:45:57+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/what-is-the-usage-of-array_intersect-in-php\/\"},\"wordCount\":111,\"publisher\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\"},\"keywords\":[\"Development\",\"guide\",\"programming\",\"technology\",\"tutorial\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/what-is-the-usage-of-array_intersect-in-php\/\",\"url\":\"https:\/\/www.silicloud.com\/blog\/what-is-the-usage-of-array_intersect-in-php\/\",\"name\":\"What is the usage of array_intersect in PHP? - Blog - Silicon Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#website\"},\"datePublished\":\"2024-03-15T14:05:12+00:00\",\"dateModified\":\"2025-08-07T07:45:57+00:00\",\"description\":\"Learn about what is the usage of array_intersect in php?. Comprehensive guide with examples and best practices.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/what-is-the-usage-of-array_intersect-in-php\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.silicloud.com\/blog\/what-is-the-usage-of-array_intersect-in-php\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/what-is-the-usage-of-array_intersect-in-php\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.silicloud.com\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"What is the usage of array_intersect in PHP?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#website\",\"url\":\"https:\/\/www.silicloud.com\/blog\/\",\"name\":\"Silicon Cloud Blog\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\",\"name\":\"Silicon Cloud Blog\",\"url\":\"https:\/\/www.silicloud.com\/blog\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.silicloud.com\/blog\/wp-content\/uploads\/2023\/11\/EN-SILICON-Full.png\",\"contentUrl\":\"https:\/\/www.silicloud.com\/blog\/wp-content\/uploads\/2023\/11\/EN-SILICON-Full.png\",\"width\":1024,\"height\":1024,\"caption\":\"Silicon Cloud Blog\"},\"image\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/SiliCloudGlobal\/\",\"https:\/\/twitter.com\/SiliCloudGlobal\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/2e83cc6ab9f60d36921c2d0f9f280f4a\",\"name\":\"Noah Thompson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/350e537e1530ede2762ee0237e877d6693f4f7163ab4f303202cc9a6b27b6cb4?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/350e537e1530ede2762ee0237e877d6693f4f7163ab4f303202cc9a6b27b6cb4?s=96&d=mm&r=g\",\"caption\":\"Noah Thompson\"},\"url\":\"https:\/\/www.silicloud.com\/blog\/author\/noahthompson\/\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"What is the usage of array_intersect in PHP? - Blog - Silicon Cloud","description":"Learn about what is the usage of array_intersect in php?. Comprehensive guide with examples and best practices.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.silicloud.com\/blog\/what-is-the-usage-of-array_intersect-in-php\/","og_locale":"en_US","og_type":"article","og_title":"What is the usage of array_intersect in PHP?","og_description":"Learn about what is the usage of array_intersect in php?. Comprehensive guide with examples and best practices.","og_url":"https:\/\/www.silicloud.com\/blog\/what-is-the-usage-of-array_intersect-in-php\/","og_site_name":"Blog - Silicon Cloud","article_publisher":"https:\/\/www.facebook.com\/SiliCloudGlobal\/","article_published_time":"2024-03-15T14:05:12+00:00","article_modified_time":"2025-08-07T07:45:57+00:00","author":"Noah Thompson","twitter_card":"summary_large_image","twitter_creator":"@SiliCloudGlobal","twitter_site":"@SiliCloudGlobal","twitter_misc":{"Written by":"Noah Thompson","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.silicloud.com\/blog\/what-is-the-usage-of-array_intersect-in-php\/#article","isPartOf":{"@id":"https:\/\/www.silicloud.com\/blog\/what-is-the-usage-of-array_intersect-in-php\/"},"author":{"name":"Noah Thompson","@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/2e83cc6ab9f60d36921c2d0f9f280f4a"},"headline":"What is the usage of array_intersect in PHP?","datePublished":"2024-03-15T14:05:12+00:00","dateModified":"2025-08-07T07:45:57+00:00","mainEntityOfPage":{"@id":"https:\/\/www.silicloud.com\/blog\/what-is-the-usage-of-array_intersect-in-php\/"},"wordCount":111,"publisher":{"@id":"https:\/\/www.silicloud.com\/blog\/#organization"},"keywords":["Development","guide","programming","technology","tutorial"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/www.silicloud.com\/blog\/what-is-the-usage-of-array_intersect-in-php\/","url":"https:\/\/www.silicloud.com\/blog\/what-is-the-usage-of-array_intersect-in-php\/","name":"What is the usage of array_intersect in PHP? - Blog - Silicon Cloud","isPartOf":{"@id":"https:\/\/www.silicloud.com\/blog\/#website"},"datePublished":"2024-03-15T14:05:12+00:00","dateModified":"2025-08-07T07:45:57+00:00","description":"Learn about what is the usage of array_intersect in php?. Comprehensive guide with examples and best practices.","breadcrumb":{"@id":"https:\/\/www.silicloud.com\/blog\/what-is-the-usage-of-array_intersect-in-php\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.silicloud.com\/blog\/what-is-the-usage-of-array_intersect-in-php\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.silicloud.com\/blog\/what-is-the-usage-of-array_intersect-in-php\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.silicloud.com\/blog\/"},{"@type":"ListItem","position":2,"name":"What is the usage of array_intersect in PHP?"}]},{"@type":"WebSite","@id":"https:\/\/www.silicloud.com\/blog\/#website","url":"https:\/\/www.silicloud.com\/blog\/","name":"Silicon Cloud Blog","description":"","publisher":{"@id":"https:\/\/www.silicloud.com\/blog\/#organization"},"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.silicloud.com\/blog\/#organization","name":"Silicon Cloud Blog","url":"https:\/\/www.silicloud.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/www.silicloud.com\/blog\/wp-content\/uploads\/2023\/11\/EN-SILICON-Full.png","contentUrl":"https:\/\/www.silicloud.com\/blog\/wp-content\/uploads\/2023\/11\/EN-SILICON-Full.png","width":1024,"height":1024,"caption":"Silicon Cloud Blog"},"image":{"@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/SiliCloudGlobal\/","https:\/\/twitter.com\/SiliCloudGlobal"]},{"@type":"Person","@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/2e83cc6ab9f60d36921c2d0f9f280f4a","name":"Noah Thompson","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/350e537e1530ede2762ee0237e877d6693f4f7163ab4f303202cc9a6b27b6cb4?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/350e537e1530ede2762ee0237e877d6693f4f7163ab4f303202cc9a6b27b6cb4?s=96&d=mm&r=g","caption":"Noah Thompson"},"url":"https:\/\/www.silicloud.com\/blog\/author\/noahthompson\/"}]}},"_links":{"self":[{"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/posts\/17011","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/users\/14"}],"replies":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/comments?post=17011"}],"version-history":[{"count":1,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/posts\/17011\/revisions"}],"predecessor-version":[{"id":50594,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/posts\/17011\/revisions\/50594"}],"wp:attachment":[{"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/media?parent=17011"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/categories?post=17011"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/tags?post=17011"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}