{"id":336,"date":"2019-01-31T17:21:41","date_gmt":"2019-01-31T17:21:41","guid":{"rendered":"http:\/\/dev.pixelprofessionals.com\/webdevelopmentreference\/?page_id=336"},"modified":"2021-02-25T04:34:28","modified_gmt":"2021-02-25T04:34:28","slug":"reference","status":"publish","type":"page","link":"https:\/\/dev.pixelprofessionals.com\/webdevelopmentreference\/reference\/","title":{"rendered":"Code Syntax Quick Reference"},"content":{"rendered":"

Getting the data type of a variable<\/h4>\r\nPHP: gettype($variable);
\r\nJS: typeof(variable);<\/p>\r\n\r\n

Determining type of object<\/h4>\r\nPHP: ($variable instanceof obj)
\r\nJS: (variable instanceof obj)
\r\nJava: (variable instanceof obj)<\/p>\r\n\r\n

Arrays<\/h2>\r\n
\r\n

Creating an empty array<\/h3>\r\nPHP:<\/strong> $myArray = [];<\/code> OR<\/strong> $myArray = array();<\/code><\/span>\r\nJS:<\/strong> var array = new Array();<\/code><\/span>\r\nJava:<\/strong> int[] array = new int [5];<\/code><\/span>\r\n<\/section>\r\n\r\n
\r\n

Finding length of an array<\/h3>\r\nPHP:<\/strong> count($array);<\/code><\/span>\r\nJS:<\/strong> array.length;<\/code><\/span>\r\nJava:<\/strong> array.length();<\/code><\/span>\r\n<\/section>\r\n\r\n
\r\n

Printing an array<\/h3>\r\nPHP:<\/strong> echo implode(\"[enter separator here]\", $myArray);<\/code> OR<\/strong> print_r($myArray);<\/code><\/span>\r\nJS:<\/strong> <\/code><\/span>\r\nJava:<\/strong> <\/code><\/span>\r\n<\/section>\r\n\r\n
\r\n

Adding an item to end of array<\/h3>\r\nPHP:<\/strong> myArray[] = $variable;<\/code> OR<\/strong> array_push($myArray, [element1], [element2]);<\/code><\/span>\r\nJS:<\/strong> myArray.push(value);<\/code><\/span>\r\nJava:<\/strong> <\/code><\/span>\r\n<\/section>\r\n\r\n
\r\n

Removing an element from end of array<\/h3>\r\nPHP:<\/strong> array_pop($myArray);<\/code><\/span>\r\nJS:<\/strong> <\/code><\/span>\r\nJava:<\/strong> <\/code><\/span>\r\n<\/section>\r\n\r\n
\r\n

Adding an element from the beginning of an array<\/h3>\r\nPHP:<\/strong> $items_removed = array_unshift($myArray, [element1], [element2]);<\/code><\/span>\r\nJS:<\/strong> <\/code><\/span>\r\nJava:<\/strong> <\/code><\/span>\r\n<\/section>\r\n\r\n
\r\n

Removing an element from the beginning of an array<\/h3>\r\nPHP:<\/strong> $item_removed = array_shift($myArray);<\/code><\/span>\r\nJS:<\/strong> <\/code><\/span>\r\nJava:<\/strong> <\/code><\/span>\r\n<\/section>\r\n\r\n
\r\n

Removing an element from an array<\/h3>\r\nPHP:<\/strong> unset($myArray[0], [$myArray[1]]);<\/code>
To reset array keys after removal use: $myArray = array_values($myArray);<\/code><\/span>\r\nJS:<\/strong> <\/code><\/span>\r\nJava:<\/strong> <\/code><\/span>\r\n<\/section>\r\n\r\n
\r\n

Check if value is in an array<\/h3>\r\nPHP:<\/strong> in_array($value, $myArray);<\/code><\/span>\r\nJS:<\/strong> myArray.indexOf(value);<\/code> OR myArray.includes(value);<\/code><\/span>\r\nJava:<\/strong> <\/code><\/span>\r\n<\/section>\r\n\r\n
\r\n

foreach<\/h3>\r\nPHP:<\/strong> foreach($myArray as $value)<\/code> OR foreach($myArray as $key => $value)<\/code><\/span>\r\nJS:<\/strong> myArray.forEach(value){ \/\/ function body }<\/code><\/span>\r\nJava:<\/strong> <\/code><\/span>\r\n<\/section>\r\n\r\n
\r\n

Slicing an array<\/h3>\r\nPHP:<\/strong> array_slice($array_name, start position, number of elements to extract(O), true\/false(O));<\/code><\/span>\r\nJS:<\/strong> myArray.slice(start, end);<\/code><\/span>\r\nJava:<\/strong> Click here<\/a><\/span>\r\n<\/section>\r\n\r\n

Strings<\/h2>\r\n
\r\n

Split string into an array<\/h3>\r\nPHP:<\/strong> <\/code><\/span>\r\nJS:<\/strong> $mystring.split([separator], limit]]);<\/code><\/span>\r\nJava:<\/strong> <\/code><\/span>\r\n<\/section>\r\n\r\n
\r\n

Get length of a string<\/h3>\r\nPHP:<\/strong> strlen($string);<\/code><\/span>\r\nJS:<\/strong> string.length;<\/code><\/span>\r\nJava:<\/strong> string.length;<\/code><\/span>\r\n<\/section>\r\n\r\n

Find location of an item in a string<\/h4>\r\nPHP: strpos($str, item);
\r\nJS: string.indexOf(item);
\r\nJava: string.indexOf(item);<\/p>\r\n\r\n

Find character at location in string<\/h4>\r\nPHP: no eqiuvalent
\r\nJS: string.charAt(pos);
\r\nJava: string.charAt(pos);<\/p>\r\n\r\n

Returning part of or slicing a string<\/h4>\r\nPHP: substr($str, start, length);
\r\nJS: string.slice(start, end);
\r\n            string.substring(start, end);
\r\n            string.substr(start, length);
\r\nJava: string.substring(start, end);<\/p>\r\n\r\n

Trim characters in a string<\/h4>\r\nPHP: trim($str, characterList);
\r\nJS: string.trim(); – removes whitespace only<\/b>
\r\nJava: string.trim(); – removes whitespace only<\/b<\/p>\r\n\r\n","protected":false},"excerpt":{"rendered":"Getting the data type of a variable PHP: gettype($variable); JS: typeof(variable); Determining type of object PHP: ($variable instanceof obj) JS: (variable instanceof obj) Java: (variable instanceof obj) Arrays Creating an empty array PHP: $myArray = []; OR $myArray = array(); JS: var array = new Array(); Java: int[] array = new int [5]; Finding length […]","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"spay_email":""},"yoast_head":"\nCode Syntax Quick Reference - Web Development Reference<\/title>\n<meta name=\"description\" content=\"Code Syntax Quick Reference - Web Development Reference\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Code Syntax Quick Reference - Web Development Reference\" \/>\n<meta property=\"og:description\" content=\"Code Syntax Quick Reference - Web Development Reference\" \/>\n<meta property=\"og:url\" content=\"http:\/\/dev.pixelprofessionals.com\/webdevelopmentreference\/reference\/\" \/>\n<meta property=\"og:site_name\" content=\"Web Development Reference\" \/>\n<meta property=\"article:modified_time\" content=\"2021-02-25T04:34:28+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\">\n\t<meta name=\"twitter:data1\" content=\"2 minutes\">\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"http:\/\/dev.pixelprofessionals.com\/webdevelopmentreference\/#website\",\"url\":\"http:\/\/dev.pixelprofessionals.com\/webdevelopmentreference\/\",\"name\":\"Web Development Reference\",\"description\":\"Web Development Solutions Explained -- Easy\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":\"http:\/\/dev.pixelprofessionals.com\/webdevelopmentreference\/?s={search_term_string}\",\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"http:\/\/dev.pixelprofessionals.com\/webdevelopmentreference\/reference\/#webpage\",\"url\":\"http:\/\/dev.pixelprofessionals.com\/webdevelopmentreference\/reference\/\",\"name\":\"Code Syntax Quick Reference - Web Development Reference\",\"isPartOf\":{\"@id\":\"http:\/\/dev.pixelprofessionals.com\/webdevelopmentreference\/#website\"},\"datePublished\":\"2019-01-31T17:21:41+00:00\",\"dateModified\":\"2021-02-25T04:34:28+00:00\",\"description\":\"Code Syntax Quick Reference - Web Development Reference\",\"breadcrumb\":{\"@id\":\"http:\/\/dev.pixelprofessionals.com\/webdevelopmentreference\/reference\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"http:\/\/dev.pixelprofessionals.com\/webdevelopmentreference\/reference\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"http:\/\/dev.pixelprofessionals.com\/webdevelopmentreference\/reference\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"item\":{\"@type\":\"WebPage\",\"@id\":\"http:\/\/dev.pixelprofessionals.com\/webdevelopmentreference\/\",\"url\":\"http:\/\/dev.pixelprofessionals.com\/webdevelopmentreference\/\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"position\":2,\"item\":{\"@type\":\"WebPage\",\"@id\":\"http:\/\/dev.pixelprofessionals.com\/webdevelopmentreference\/reference\/\",\"url\":\"http:\/\/dev.pixelprofessionals.com\/webdevelopmentreference\/reference\/\",\"name\":\"Code Syntax Quick Reference\"}}]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/P7o7aF-5q","_links":{"self":[{"href":"https:\/\/dev.pixelprofessionals.com\/webdevelopmentreference\/wp-json\/wp\/v2\/pages\/336"}],"collection":[{"href":"https:\/\/dev.pixelprofessionals.com\/webdevelopmentreference\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/dev.pixelprofessionals.com\/webdevelopmentreference\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/dev.pixelprofessionals.com\/webdevelopmentreference\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/dev.pixelprofessionals.com\/webdevelopmentreference\/wp-json\/wp\/v2\/comments?post=336"}],"version-history":[{"count":48,"href":"https:\/\/dev.pixelprofessionals.com\/webdevelopmentreference\/wp-json\/wp\/v2\/pages\/336\/revisions"}],"predecessor-version":[{"id":400,"href":"https:\/\/dev.pixelprofessionals.com\/webdevelopmentreference\/wp-json\/wp\/v2\/pages\/336\/revisions\/400"}],"wp:attachment":[{"href":"https:\/\/dev.pixelprofessionals.com\/webdevelopmentreference\/wp-json\/wp\/v2\/media?parent=336"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}