(window.webpackJsonp=window.webpackJsonp||[]).push([[1262],{1670:function(t,a,s){"use strict";s.r(a);var e=s(31),n=Object(e.a)({},(function(){var t=this,a=t.$createElement,s=t._self._c||a;return s("ContentSlotsDistributor",{attrs:{"slot-key":t.$parent.slotKey}},[s("h1",{attrs:{id:"forms"}},[s("a",{staticClass:"header-anchor",attrs:{href:"#forms"}},[t._v("#")]),t._v(" Forms")]),t._v(" "),s("p",[t._v("In order to group input elements and submit data, HTML uses a form element to encapsulate input and submission elements. These forms handle sending the data in the specified method to a page handled by a server or handler. This topic explains and demonstrates the usage of HTML forms in collecting and submitting input data.")]),t._v(" "),s("h2",{attrs:{id:"submitting"}},[s("a",{staticClass:"header-anchor",attrs:{href:"#submitting"}},[t._v("#")]),t._v(" Submitting")]),t._v(" "),s("h3",{attrs:{id:"the-action-attribute"}},[s("a",{staticClass:"header-anchor",attrs:{href:"#the-action-attribute"}},[t._v("#")]),t._v(" The Action Attribute")]),t._v(" "),s("p",[t._v("The action attribute defines the action to be performed when the form is submitted, which usually leads to a script that collects the information submitted and works with it. if you leave it blank, it will send it to the same file")]),t._v(" "),s("div",{staticClass:"language-html extra-class"},[s("pre",{pre:!0,attrs:{class:"language-html"}},[s("code",[s("span",{pre:!0,attrs:{class:"token tag"}},[s("span",{pre:!0,attrs:{class:"token tag"}},[s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("<")]),t._v("form")]),t._v(" "),s("span",{pre:!0,attrs:{class:"token attr-name"}},[t._v("action")]),s("span",{pre:!0,attrs:{class:"token attr-value"}},[s("span",{pre:!0,attrs:{class:"token punctuation attr-equals"}},[t._v("=")]),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v('"')]),t._v("action.php"),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v('"')])]),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(">")])]),t._v("\n\n")])])]),s("h3",{attrs:{id:"the-method-attribute"}},[s("a",{staticClass:"header-anchor",attrs:{href:"#the-method-attribute"}},[t._v("#")]),t._v(" The Method Attribute")]),t._v(" "),s("p",[t._v("The method attribute is used to define the HTTP method of the form which is either GET or POST.")]),t._v(" "),s("div",{staticClass:"language-html extra-class"},[s("pre",{pre:!0,attrs:{class:"language-html"}},[s("code",[s("span",{pre:!0,attrs:{class:"token tag"}},[s("span",{pre:!0,attrs:{class:"token tag"}},[s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("<")]),t._v("form")]),t._v(" "),s("span",{pre:!0,attrs:{class:"token attr-name"}},[t._v("action")]),s("span",{pre:!0,attrs:{class:"token attr-value"}},[s("span",{pre:!0,attrs:{class:"token punctuation attr-equals"}},[t._v("=")]),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v('"')]),t._v("action.php"),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v('"')])]),t._v(" "),s("span",{pre:!0,attrs:{class:"token attr-name"}},[t._v("method")]),s("span",{pre:!0,attrs:{class:"token attr-value"}},[s("span",{pre:!0,attrs:{class:"token punctuation attr-equals"}},[t._v("=")]),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v('"')]),t._v("get"),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v('"')])]),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(">")])]),t._v("\n"),s("span",{pre:!0,attrs:{class:"token tag"}},[s("span",{pre:!0,attrs:{class:"token tag"}},[s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("<")]),t._v("form")]),t._v(" "),s("span",{pre:!0,attrs:{class:"token attr-name"}},[t._v("action")]),s("span",{pre:!0,attrs:{class:"token attr-value"}},[s("span",{pre:!0,attrs:{class:"token punctuation attr-equals"}},[t._v("=")]),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v('"')]),t._v("action.php"),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v('"')])]),t._v(" "),s("span",{pre:!0,attrs:{class:"token attr-name"}},[t._v("method")]),s("span",{pre:!0,attrs:{class:"token attr-value"}},[s("span",{pre:!0,attrs:{class:"token punctuation attr-equals"}},[t._v("=")]),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v('"')]),t._v("post"),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v('"')])]),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(">")])]),t._v("\n\n")])])]),s("p",[t._v("The GET method is mostly used to "),s("strong",[t._v("get")]),t._v(" data, for example to receive a post by its ID or name, or to submit a search query. The GET method will append the form data to the URL specified in the action attribute.")]),t._v(" "),s("div",{staticClass:"language-html extra-class"},[s("pre",{pre:!0,attrs:{class:"language-html"}},[s("code",[t._v("www.example.com/action.php?firstname=Mickey&lastname=Mouse\n\n")])])]),s("p",[t._v("The POST method is used when submitting data to a script. The POST method does not append the form data to the action URL but sends using the request body.")]),t._v(" "),s("p",[t._v("To submit the data from the form correctly, a name attribute name must be specified."),s("br"),t._v("\nAs an example let's send the value of the field and set its name to "),s("strong",[t._v("lastname")]),t._v(":")]),t._v(" "),s("div",{staticClass:"language-html extra-class"},[s("pre",{pre:!0,attrs:{class:"language-html"}},[s("code",[s("span",{pre:!0,attrs:{class:"token tag"}},[s("span",{pre:!0,attrs:{class:"token tag"}},[s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("<")]),t._v("input")]),t._v(" "),s("span",{pre:!0,attrs:{class:"token attr-name"}},[t._v("type")]),s("span",{pre:!0,attrs:{class:"token attr-value"}},[s("span",{pre:!0,attrs:{class:"token punctuation attr-equals"}},[t._v("=")]),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v('"')]),t._v("text"),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v('"')])]),t._v(" "),s("span",{pre:!0,attrs:{class:"token attr-name"}},[t._v("name")]),s("span",{pre:!0,attrs:{class:"token attr-value"}},[s("span",{pre:!0,attrs:{class:"token punctuation attr-equals"}},[t._v("=")]),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v('"')]),t._v("lastname"),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v('"')])]),t._v(" "),s("span",{pre:!0,attrs:{class:"token attr-name"}},[t._v("value")]),s("span",{pre:!0,attrs:{class:"token attr-value"}},[s("span",{pre:!0,attrs:{class:"token punctuation attr-equals"}},[t._v("=")]),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v('"')]),t._v("Mouse"),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v('"')])]),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(">")])]),t._v("\n\n")])])]),s("h3",{attrs:{id:"more-attributes"}},[s("a",{staticClass:"header-anchor",attrs:{href:"#more-attributes"}},[t._v("#")]),t._v(" More attributes")]),t._v(" "),s("div",{staticClass:"language-html 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The target\nattribute is ****supported**** in ****HTML5****.")]),t._v(" "),s("p",[t._v("Frames and framesets are not supported in ****HTML5****, so the "),s("strong",[s("em",[t._v("_parent, _top\nand framename values are now mostly used with iframes")])]),t._v(".")]),t._v(" "),s("h2",{attrs:{id:"uploading-files"}},[s("a",{staticClass:"header-anchor",attrs:{href:"#uploading-files"}},[t._v("#")]),t._v(" Uploading Files")]),t._v(" "),s("p",[t._v("Images and files can be uploaded/submitted to server by setting "),s("code",[t._v("enctype")]),t._v(" attribute of "),s("code",[t._v("form")]),t._v(" tag to "),s("code",[t._v("multipart/form-data")]),t._v(".\n"),s("code",[t._v("enctype")]),t._v(" specifies how form data would be encoded while submitting to the server.")]),t._v(" "),s("p",[s("strong",[t._v("Example")])]),t._v(" "),s("div",{staticClass:"language-html extra-class"},[s("pre",{pre:!0,attrs:{class:"language-html"}},[s("code",[s("span",{pre:!0,attrs:{class:"token tag"}},[s("span",{pre:!0,attrs:{class:"token tag"}},[s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("<")]),t._v("form")]),t._v(" "),s("span",{pre:!0,attrs:{class:"token attr-name"}},[t._v("method")]),s("span",{pre:!0,attrs:{class:"token attr-value"}},[s("span",{pre:!0,attrs:{class:"token punctuation attr-equals"}},[t._v("=")]),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v('"')]),t._v("post"),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v('"')])]),t._v(" "),s("span",{pre:!0,attrs:{class:"token attr-name"}},[t._v("enctype")]),s("span",{pre:!0,attrs:{class:"token attr-value"}},[s("span",{pre:!0,attrs:{class:"token punctuation attr-equals"}},[t._v("=")]),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v('"')]),t._v("multipart/form-data"),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v('"')])]),t._v(" "),s("span",{pre:!0,attrs:{class:"token attr-name"}},[t._v("action")]),s("span",{pre:!0,attrs:{class:"token attr-value"}},[s("span",{pre:!0,attrs:{class:"token punctuation attr-equals"}},[t._v("=")]),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v('"')]),t._v("upload.php"),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v('"')])]),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(">")])]),t._v(" \n "),s("span",{pre:!0,attrs:{class:"token tag"}},[s("span",{pre:!0,attrs:{class:"token tag"}},[s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("<")]),t._v("input")]),t._v(" "),s("span",{pre:!0,attrs:{class:"token attr-name"}},[t._v("type")]),s("span",{pre:!0,attrs:{class:"token attr-value"}},[s("span",{pre:!0,attrs:{class:"token punctuation attr-equals"}},[t._v("=")]),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v('"')]),t._v("file"),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v('"')])]),t._v(" "),s("span",{pre:!0,attrs:{class:"token attr-name"}},[t._v("name")]),s("span",{pre:!0,attrs:{class:"token attr-value"}},[s("span",{pre:!0,attrs:{class:"token punctuation attr-equals"}},[t._v("=")]),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v('"')]),t._v("pic"),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v('"')])]),t._v(" "),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("/>")])]),t._v("\n "),s("span",{pre:!0,attrs:{class:"token tag"}},[s("span",{pre:!0,attrs:{class:"token tag"}},[s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("<")]),t._v("input")]),t._v(" "),s("span",{pre:!0,attrs:{class:"token attr-name"}},[t._v("type")]),s("span",{pre:!0,attrs:{class:"token attr-value"}},[s("span",{pre:!0,attrs:{class:"token punctuation attr-equals"}},[t._v("=")]),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v('"')]),t._v("submit"),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v('"')])]),t._v(" "),s("span",{pre:!0,attrs:{class:"token attr-name"}},[t._v("value")]),s("span",{pre:!0,attrs:{class:"token attr-value"}},[s("span",{pre:!0,attrs:{class:"token punctuation attr-equals"}},[t._v("=")]),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v('"')]),t._v("Upload"),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v('"')])]),t._v(" "),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("/>")])]),t._v("\n"),s("span",{pre:!0,attrs:{class:"token tag"}},[s("span",{pre:!0,attrs:{class:"token tag"}},[s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("")])]),t._v("\n\n")])])]),s("h2",{attrs:{id:"grouping-a-few-input-fields"}},[s("a",{staticClass:"header-anchor",attrs:{href:"#grouping-a-few-input-fields"}},[t._v("#")]),t._v(" Grouping a few input fields")]),t._v(" "),s("p",[t._v("While designing a form, you might like to group a few input fields into a group to help organise the form layout. This can be done by using the tag . Here is an example for using it.")]),t._v(" "),s("p",[t._v("For each fieldset, you can set a legend for the set using the tag LEGEND TEXT")]),t._v(" "),s("p",[s("strong",[t._v("Example")])]),t._v(" "),s("div",{staticClass:"language-html extra-class"},[s("pre",{pre:!0,attrs:{class:"language-html"}},[s("code",[s("span",{pre:!0,attrs:{class:"token tag"}},[s("span",{pre:!0,attrs:{class:"token tag"}},[s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("<")]),t._v("form")]),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(">")])]),t._v("\n "),s("span",{pre:!0,attrs:{class:"token tag"}},[s("span",{pre:!0,attrs:{class:"token tag"}},[s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("<")]),t._v("fieldset")]),s("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(">")])]),t._v("\n "),s("span",{pre:!0,attrs:{class:"token tag"}},[s("span",{pre:!0,attrs:{class:"token tag"}},[s("span",{pre:!0,attrs:{class:"token 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