Hướng dẫn urlencode php w3schools
HTML Uniform Resource LocatorsA URL is another word for a web address. Show A URL can be composed of words (e.g. w3schools.com), or an Internet Protocol (IP) address (e.g. 192.68.20.50). Most people enter the name when surfing, because names are easier to remember than numbers. URL - Uniform Resource LocatorWeb browsers request pages from web servers by using a URL. A Uniform Resource Locator (URL) is used to address a document (or other data) on the web. A web address like https://www.w3schools.com/html/default.asp follows these syntax rules: scheme://prefix.domain:port/path/filename Explanation:
Common URL SchemesThe table below lists some common schemes:
URLs can only be sent over the Internet using the ASCII character-set. If a URL contains characters outside the ASCII set, the URL has to be converted. URL encoding converts non-ASCII characters into a format that can be transmitted over the Internet. URL encoding replaces non-ASCII characters with a "%" followed by hexadecimal digits. URLs cannot contain spaces. URL encoding normally replaces a space with a plus (+) sign, or %20. Try It YourselfIf you click "Submit", the browser will URL encode the input before it is sent to the server. A page at the server will display the received input. Try some other input and click Submit again. ASCII Encoding ExamplesYour browser will encode input, according to the character-set used in your page. The default character-set in HTML5 is UTF-8.
For a complete reference of all URL encodings, visit our URL Encoding Reference. URL - Uniform Resource LocatorWeb browsers request pages from web servers by using a URL. The URL is the address of a web page, like: https://www.w3schools.com. URL Encoding (Percent Encoding)URL encoding converts characters into a format that can be transmitted over the Internet. URLs can only be sent over the Internet using the ASCII character-set. Since URLs often contain characters outside the ASCII set, the URL has to be converted into a valid ASCII format. URL encoding replaces unsafe ASCII characters with a "%" followed by two hexadecimal digits. URLs cannot contain spaces. URL encoding normally replaces a space with a plus (+) sign or with %20. Try It YourselfIf you click the "Submit" button below, the browser will URL encode the input before it is sent to the server. A page at the server will display the received input. Try some other input and click Submit again. URL Encoding FunctionsIn JavaScript, PHP, and ASP there are functions that can be used to URL encode a string. PHP has the rawurlencode() function, and ASP has the Server.URLEncode() function. In JavaScript you can use the encodeURIComponent() function. Click the "URL Encode" button to see how the JavaScript function encodes the text. Note: The JavaScript function encodes space as %20. ASCII Encoding ReferenceYour browser will encode input, according to the character-set used in your page. The default character-set in HTML5 is UTF-8.
URL Encoding ReferenceThe ASCII control characters %00-%1F were originally designed to control hardware devices. Control characters have nothing to do inside a URL.
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