{"id":3051,"date":"2017-07-30T13:43:43","date_gmt":"2017-07-30T10:43:43","guid":{"rendered":"http:\/\/kamil-abzalov.com\/tutorials\/arrays-in-php\/"},"modified":"2020-04-08T19:38:17","modified_gmt":"2020-04-08T16:38:17","slug":"arrays-in-php","status":"publish","type":"post","link":"https:\/\/kamil-abzalov.com\/en\/tutorials\/php\/arrays-in-php\/","title":{"rendered":"Arrays in php"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; fullwidth=&#8221;on&#8221; _builder_version=&#8221;3.22&#8243;][et_pb_fullwidth_header title=&#8221;Arrays in php&#8221; content_max_width=&#8221;none&#8221; _builder_version=&#8221;3.16&#8243; button_one_letter_spacing_hover=&#8221;0&#8243; button_two_letter_spacing_hover=&#8221;0&#8243; button_one_text_size__hover_enabled=&#8221;off&#8221; button_two_text_size__hover_enabled=&#8221;off&#8221; button_one_text_color__hover_enabled=&#8221;off&#8221; button_two_text_color__hover_enabled=&#8221;off&#8221; button_one_border_width__hover_enabled=&#8221;off&#8221; button_two_border_width__hover_enabled=&#8221;off&#8221; button_one_border_color__hover_enabled=&#8221;off&#8221; button_two_border_color__hover_enabled=&#8221;off&#8221; button_one_border_radius__hover_enabled=&#8221;off&#8221; button_two_border_radius__hover_enabled=&#8221;off&#8221; button_one_letter_spacing__hover_enabled=&#8221;on&#8221; button_one_letter_spacing__hover=&#8221;0&#8243; button_two_letter_spacing__hover_enabled=&#8221;on&#8221; button_two_letter_spacing__hover=&#8221;0&#8243; button_one_bg_color__hover_enabled=&#8221;off&#8221; button_two_bg_color__hover_enabled=&#8221;off&#8221;][\/et_pb_fullwidth_header][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; admin_label=&#8221;section&#8221; _builder_version=&#8221;3.22&#8243;][et_pb_row admin_label=&#8221;row&#8221; _builder_version=&#8221;3.25&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; custom_padding=&#8221;0px|||&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;3.25&#8243; custom_padding=&#8221;|||&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_dcsbcm_divi_breadcrumbs_module homebreadcrumbtext=&#8221;Home&#8221; hide_currentbreadcrumb=&#8221;off&#8221; _builder_version=&#8221;4.4.2&#8243; custom_padding=&#8221;0px|||&#8221; hover_enabled=&#8221;0&#8243; fontsbreadcrumbs_font_size_tablet=&#8221;51&#8243; fontsbreadcrumbs_line_height_tablet=&#8221;2&#8243; fontsseperator_font_size_tablet=&#8221;51&#8243; fontsseperator_line_height_tablet=&#8221;2&#8243; fontsbreadcrumblinks_font_size_tablet=&#8221;51&#8243; fontsbreadcrumblinks_line_height_tablet=&#8221;2&#8243;][\/et_pb_dcsbcm_divi_breadcrumbs_module][et_pb_text _builder_version=&#8221;3.27.4&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; use_border_color=&#8221;off&#8221; border_color=&#8221;#ffffff&#8221; border_style=&#8221;solid&#8221;]In this lesson we&#8217;ll consider arrays. Arrays are very important data structure in a lot of different programming languages. In pjp there are a lot of functions to work with arrays. Some of iy we&#8217;ll consider in this tutorial. Also you will know about associative arrays, and foreach loop.<br \/>\n[\/et_pb_text][et_pb_video src=&#8221;https:\/\/www.youtube.com\/watch?v=pKKnv9p1ZxU&#8221; _builder_version=&#8221;3.0.47&#8243;][\/et_pb_video][et_pb_text _builder_version=&#8221;3.27.4&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; use_border_color=&#8221;off&#8221; border_color=&#8221;#ffffff&#8221; border_style=&#8221;solid&#8221;]Besides we&#8217;ll consider how to add elements to arrays, how to extract first and last elements form array. It is important to note, arrays have got two main characteristics &#8211; keys and values. To work with arrays in loop, we must know array length. For this purpose php has got <a href=\"http:\/\/php.net\/manual\/ru\/function.count.php\" target=\"_blank\" rel=\"noopener noreferrer\">count<\/a> function<\/p>\n<p>As a homework assignment I offer you write script, which will count average array value. In next lesson we&#8217;ll talk about array sorting.<br \/>\n[\/et_pb_text][et_pb_comments _builder_version=&#8221;4.4.2&#8243; custom_margin=&#8221;30px||||false|false&#8221; hover_enabled=&#8221;0&#8243;][\/et_pb_comments][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In this lesson we&#8217;ll consider arrays. Arrays are very important data structure in a lot of different programming languages. In pjp there are a lot of functions to work with arrays. Some of iy we&#8217;ll consider in this tutorial. Also you will know about associative arrays, and foreach loop. Besides we&#8217;ll consider how to add [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"\u0412 \u044d\u0442\u043e\u043c \u0443\u0440\u043e\u043a\u0435 \u043c\u044b \u043e\u0431\u0441\u0443\u0434\u0438\u043c \u043c\u0430\u0441\u0441\u0438\u0432\u044b \u0432 php. \u041c\u0430\u0441\u0441\u0438\u0432\u044b - \u043e\u0447\u0435\u043d\u044c \u0432\u0430\u0436\u043d\u0430\u044f \u0438 \u0447\u0430\u0441\u0442\u043e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u0430\u044f \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0430 \u0434\u0430\u043d\u043d\u044b\u0445 \u0432 \u043b\u044e\u0431\u043e\u043c \u0441\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u043e\u043c \u044f\u0437\u044b\u043a\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f. \u0412 php \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u0435\u0442 \u0431\u043e\u043b\u044c\u0448\u043e\u0435 \u043a\u043e\u043b\u0438\u0447\u0435\u0441\u0442\u0432\u043e \u0444\u0443\u043d\u043a\u0446\u0438\u0439 \u0434\u043b\u044f \u0440\u0430\u0431\u043e\u0442\u044b \u0441 \u043c\u0430\u0441\u0441\u0438\u0432\u0430\u043c\u0438. \u041d\u0435\u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0438\u0437 \u043d\u0438\u0445 \u043c\u044b \u0440\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0438\u043c \u0432 \u044d\u0442\u043e\u043c \u0443\u0440\u043e\u043a\u0435. \u0422\u0430\u043a\u0436\u0435 \u0432\u044b \u0443\u0437\u043d\u0430\u0435\u0442\u0435, \u0447\u0442\u043e \u0442\u0430\u043a\u043e\u0435 \u0430\u0441\u0441\u043e\u0446\u0438\u0430\u0442\u0438\u0432\u043d\u044b\u0435 \u043c\u0430\u0441\u0441\u0438\u0432\u044b \u0432 php, \u0430 \u0442\u0430\u043a\u0436\u0435 \u0440\u0430\u0437\u0431\u0435\u0440\u0435\u043c \u0446\u0438\u043a\u043b foreach.<!--more-->\r\n\r\nhttps:\/\/www.youtube.com\/watch?v=pKKnv9p1ZxU\r\n\r\n\u041a\u0440\u043e\u043c\u0435 \u044d\u0442\u043e\u0433\u043e, \u043c\u044b \u0440\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0438\u043c, \u043a\u0430\u043a \u0434\u043e\u0431\u0430\u0432\u0438\u0442\u044c \u044d\u043b\u0435\u043c\u0435\u043d\u0442 \u0432 \u043c\u0430\u0441\u0441\u0438\u0432, \u043a\u0430\u043a \u0438\u0437\u0432\u043b\u0435\u0447\u044c \u043f\u0435\u0440\u0432\u044b\u0435 \u044d\u043b\u0435\u043c\u0435\u043d\u0442 \u043c\u0430\u0441\u0441\u0438\u0432\u0430, \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0438\u0439 \u044d\u043b\u0435\u043c\u0435\u043d\u0442 \u043c\u0430\u0441\u0441\u0438\u0432\u0430. \u0412\u0430\u0436\u043d\u043e \u043e\u0442\u043c\u0435\u0442\u0438\u0442\u044c, \u0447\u0442\u043e \u043c\u0430\u0441\u0441\u0438\u0432 \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0437\u0443\u0435\u0442\u0441\u044f \u0434\u0432\u0443\u043c\u044f \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a\u0430\u043c\u0438 - \u043a\u043b\u044e\u0447 \u0438 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435. \u0414\u043b\u044f \u0442\u043e\u0433\u043e, \u0447\u0442\u043e\u0431\u044b \u0440\u0430\u0431\u043e\u0442\u0430\u0442\u044c \u0441 \u043c\u0430\u0441\u0441\u0438\u0432\u043e\u043c \u0432 \u0446\u0438\u043a\u043b\u0435, \u043d\u0430\u043c \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e \u0437\u043d\u0430\u0442\u044c \u043a\u043e\u043b\u0438\u0447\u0435\u0441\u0442\u0432\u043e \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u043e\u0432 \u0432 \u043c\u0430\u0441\u0441\u0438\u0432\u0435. \u0414\u043b\u044f \u044d\u0442\u043e\u0433\u043e \u0432 php \u0435\u0441\u0442\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u044f <a href=\"http:\/\/php.net\/manual\/ru\/function.count.php\" target=\"_blank\">count<\/a>\r\n\r\n\u0412 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u0434\u043e\u043c\u0430\u0448\u043d\u0435\u0433\u043e \u0437\u0430\u0434\u0430\u043d\u0438\u044f \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u044e \u0432\u0430\u043c \u043d\u0430\u043f\u0438\u0441\u0430\u0442\u044c \u0441\u043a\u0440\u0438\u043f\u0442, \u0432\u044b\u0441\u0447\u0438\u0442\u044b\u0432\u0430\u044e\u0449\u0438\u0439 \u0441\u0440\u0435\u0434\u043d\u0435\u0435 \u0430\u0440\u0438\u0444\u043c\u0435\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0435 \u0447\u0438\u0441\u043b\u043e\u0432\u043e\u0433\u043e \u043c\u0430\u0441\u0441\u0438\u0432\u0430 (\u043c\u0430\u0441\u0441\u0438\u0432 \u0437\u0430\u0434\u0430\u0439\u0442\u0435 \u0441\u0430\u043c\u0438). \u041d\u0430 \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0435\u043c \u0443\u0440\u043e\u043a\u0435 \u043c\u044b \u043f\u043e\u0433\u043e\u0432\u043e\u0440\u0438\u043c \u043e \u0441\u043e\u0440\u0442\u0438\u0440\u043e\u0432\u043a\u0435 \u043c\u0430\u0441\u0441\u0438\u0432\u043e\u0432.\r\n\r\n\u041a\u043e\u0434 \u0443\u0440\u043e\u043a\u0430:\r\n\r\n<pre><code><?php\r\n\r\n\/*\r\n$arrayName = array();\r\n\r\nvar_dump($arrayName);\r\n\r\nprint_r($arrayName);\r\n\r\n$a = 5;\r\nvar_dump($a);\r\n*\/\r\n\r\n$arrayName = array(1,2,3,4,5);\r\n\r\nvar_dump($arrayName);\r\n\r\necho \"<pre>\";\r\nprint_r($arrayName);\r\necho \"<pre>\";\r\n\r\necho $arrayName[2];\r\n\r\necho \"<br>\";\r\n\r\necho count($arrayName);\r\n\r\necho \"<br>\";\r\n\r\nfor ($i=0; $i < count($arrayName); $i++) { \r\n    echo $arrayName[$i] . \" \";\r\n}\r\n\r\necho \"<br>\";\r\n\r\nforeach ($arrayName as $key => $value) {\r\n    echo $key . \"=>\" .$value . \"<br>\";\r\n}\r\n\r\n$basket = array(\r\n    'banana' => 5,\r\n    'pear'   => 7,\r\n    'apple'  => 9\r\n);\r\n\r\necho $basket['banana'];\r\n\r\necho \"<br\/>\";\r\n\r\nforeach ($basket as $key => $value) {\r\n    echo $key . \"=>\" .$value . \"<br\/>\"; \r\n}\r\n\r\nvar_dump($basket);\r\n\r\nprint_r($basket);\r\n\r\n$arr = array(\r\n    array(1,2,3,4,5),\r\n    array(6,7,8,9)\r\n);\r\n\r\necho count($arr);\r\n\r\nvar_dump($arr);\r\n\r\necho $arr[0][3];\r\n\r\n$nums = array(1,2,3,4,5);\r\n\r\narray_push($nums, 8);\r\n\r\nvar_dump($nums);\r\n\r\narray_unshift($nums, -1);\r\n\r\nvar_dump($nums);\r\n\r\necho array_pop($nums) . \" \" . array_shift($nums);\r\n\r\n$basket['cucumber'] = 15;\r\n\r\nvar_dump($basket);\r\n\r\n$tomato = array('tomato' => 20);\r\n\r\n\/\/$basket = $basket + $tomato;\r\n\/\/$basket = $tomato + $basket;\r\n\r\nvar_dump($basket);\r\n\r\n$res = array_merge($tomato, $basket);\r\n\r\nvar_dump($res);\r\n\r\n\/\/ \u043f\u043e\u0441\u0447\u0438\u0442\u0430\u0442\u044c \u0441\u0440\u0435\u0434\u043d\u0435\u0435 \u0430\u0440\u0438\u0444\u0442\u043c\u0435\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0435 \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u043e\u0432 \u0447\u0438\u0441\u043b\u043e\u0432\u043e\u0433\u043e \u043c\u0430\u0441\u0441\u0438\u0432\u0430 (abzalov90@gmail.com)\r\n\/\/ http:\/\/php.net\/manual\/ru\/ref.array.php\r\n\r\n<\/code><\/pre>","_et_gb_content_width":"","footnotes":""},"categories":[273,219],"tags":[240],"class_list":["post-3051","post","type-post","status-publish","format-standard","hentry","category-php","category-tutorials","tag-php-en"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - 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