Php get parameter from url
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In particular, it's a superglobal: a built-in variable that's populated by PHP and is available in all scopes (you can use it from inside a function without the global keyword). Since the variable might not exist, you could (and should) ensure your code does not trigger notices with:
Alternatively, if you want to skip manual index checks and maybe add further validations you can use the filter extension:
Last but not least, you can use the null coalescing operator (available since PHP/7.0) to handle missing parameters: (PHP 4 >= 4.1.0, PHP 5, PHP 7, PHP 8) $_GET — HTTP GET variables DescriptionAn associative array of variables passed to the current script via the URL parameters (aka. query string). Note that the array is not only populated for GET requests, but rather for all requests with a query string. ExamplesExample #1 $_GET example
Assuming the user entered http://example.com/?name=Hannes The above example will output something similar to: Notes
CleverUser123 ¶ 8 months ago
An Anonymous User ¶ 1 year ago
(PHP 4, PHP 5, PHP 7, PHP 8) parse_url — Parse a URL and return its components Descriptionparse_url(string This function is not meant to validate the given URL, it only breaks it up into the parts listed below. Partial and invalid URLs are also accepted, parse_url() tries its best to parse them correctly. Parametersurl The URL to parse. component Specify one of Return Values On seriously malformed URLs, parse_url() may return If the
If the http://example.com/foo → query = null, fragment = null http://example.com/foo? → query = "", fragment = null http://example.com/foo# → query = null, fragment = "" http://example.com/foo?# → query = "", fragment = "" Previously all cases resulted in query and fragment being Note that control characters (cf. ctype_cntrl()) in the
components are replaced with underscores ( Changelog
ExamplesExample #1 A parse_url() example
The above example will output: array(8) { ["scheme"]=> string(4) "http" ["host"]=> string(8) "hostname" ["port"]=> int(9090) ["user"]=> string(8) "username" ["pass"]=> string(8) "password" ["path"]=> string(5) "/path" ["query"]=> string(9) "arg=value" ["fragment"]=> string(6) "anchor" } string(4) "http" string(8) "username" string(8) "password" string(8) "hostname" int(9090) string(5) "/path" string(9) "arg=value" string(6) "anchor" Example #2 A parse_url() example with missing scheme
The above example will output: array(3) { ["host"]=> string(15) "www.example.com" ["path"]=> string(5) "/path" ["query"]=> string(17) "googleguy=googley" } NotesCaution This function may not give correct results for relative or invalid URLs, and the results may not even match common behavior of HTTP clients. If URLs from untrusted input need to be parsed, extra validation is required, e.g. by using filter_var() with the
See Also
thomas at gielfeldt dot com ¶ 10 years ago
= 'http://usr::81/mypath/myfile.html?a=b&b[]=2&b[]=3#myfragment';
simbappo ¶ 1 year ago
lauris () lauris ! lv ¶ 8 years ago
$parts === false) mys5droid at gmail dot com ¶ 6 years ago
echo relativeToAbsolute($absolute, $absolute) . "\n"; jerome at chaman dot ca ¶ 7 years ago
adrian-php at sixfingeredman dot net ¶ 15 years ago
// Step 7 pjpawel ¶ 4 months ago
vbrazas15 at gmail dot com ¶ 1 year ago
vdklah at hotmail dot com ¶ 13 years ago
to1ne at hotmail dot com ¶ 14 years ago
$out; ivijan dot stefan at gmail dot com ¶ 8 years ago
kibblewhite+php at live dot com ¶ 1 year ago
= 'http://usr::81/mypath/myfile.html?a=b&b[]=2&b[]=3&z=9#myfragment';$new_url_01_overwrite_query_params = parse_rebuild_url( $test_url, array( demerit ¶ 5 years ago
therselman at gmail ¶ 10 years ago
laszlo dot janszky at gmail dot com ¶ 10 years ago
ap dot public1 at gmail dot com ¶ 13 years ago
zappascripts at gmail com ¶ 5 years ago
$url; utilmind ¶ 9 years ago
Rob ¶ 7 years ago
$uri->getUri(); //scheme:child:scheme.VALIDscheme123:usr:/mypath/myfile.html?a=b&b[]=2&b[]=3#myfragment spam at paulisageek dot com ¶ 15 years ago
nirazuelos at gmail dot com ¶ 12 years ago
need_sunny at yahoo dot com ¶ 12 years ago
$var as $val) jesse at example dot com ¶ 11 years ago
bramg dot net1 at gmail dot com ¶ 3 years ago
404 ( '404_not_found_message' ); ?>
solenoid at example dot com ¶ 12 years ago
admin at griefer1999 dot uhostfull dot com ¶ 7 years ago
xellisx ¶ 13 years ago
$var as $val)
boctulus @ gmail co!m ¶ 2 years ago
Anonymous ¶ 4 years ago
Anonymous ¶ 4 years ago
Anonymous ¶ 4 years ago
$params; RobertVow ¶ 10 months ago
What is $_ GET in PHP?PHP $_GET is a PHP super global variable which is used to collect form data after submitting an HTML form with method="get". $_GET can also collect data sent in the URL. Assume we have an HTML page that contains a hyperlink with parameters:
How parse URL in PHP?The parse_url() function is an inbuilt function in PHP which is used to return the components of a URL by parsing it.. It return an associative array if the component parameter is omitted.. It return a string if the component parameter is specified.. It return false, if the parameter is malformed URL.. How do you access the data sent through the URL with the GET method in PHP?The data sent by GET method can be accessed using QUERY_STRING environment variable. The PHP provides $_GET associative array to access all the sent information using GET method.
What is query string PHP?A query string is a term for adding/passing data in the URL. It is not language specific.
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