GET URL parameter in PHP

Question

I m trying to pass a URL as a url parameter in php but when I try to get this parameter I get nothing   I m using the following url form   http   localhost dispatch php link www google com   I m trying to get it through     GET  link      But nothing returned  What is the problem

User · Answer

Please post your code    lt  php     echo   GET  link      gt    or    lt  php     echo   REQUEST  link      gt    do work

User · Answer

As Alvaro said    GET is not a function but an array containing the parameters So you can retrieve one element from that array using    lt  php  link     GET  link    echo  link    gt    Expected OP   www google com

User · Answer

I was getting nothing for any   GET         e g print r   GET  gave an empty array  yet   SERVER  REQUEST URI   showed stuff should be there  In the end it turned out that I was only getting to the web page because my  htaccess was redirecting it there  my 404 handler was the same  php file  and I had made a typo in the browser when testing    Simply changing the name meant the same php code worked once the 404 redirection wasn t kicking in   So there are ways   GET can return nothing even though the php code may be correct

User · Answer

The accepted answer is good  But if you have a scenario like this   http   www mydomain me index php state California php Berkeley   You can treat the named anchor as a query string like this   http   www mydomain me index php state California php amp city Berkeley   Then  access it like this    Url     GET  state         GET  city

User · Answer

Query String    explode  quot  amp  quot   explode  quot   quot     SERVER  REQUEST URI    1     var dump  Query String    Array      0    gt  link www google com

User · Answer

Whomever gets nothing back  I think he just has to enclose the result in html tags    Like this    lt html gt   lt head gt  lt  head gt   lt body gt   lt  php echo   GET  link      gt   lt body gt   lt  html gt

User · Answer

Use this    parameter     SERVER  QUERY STRING    echo  parameter    Or just use    parameter     GET  link    echo  parameter

User · Answer

GET is not a function or language construct   it s just a variable  an array   Try    lt  php echo   GET  link      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    lt  php if  isset   GET  link           echo   GET  link      else          Fallback behaviour goes here     Alternatively  if you want to skip manual index checks and maybe add further validations you can use the filter extension    lt  php echo filter input INPUT GET   link   FILTER SANITIZE URL     Last but not least  you can use the null coalescing operator  available since PHP 7 0  to handle missing parameters   echo   GET  link       Fallback value

User · Answer

To make sure you re always on the safe side  without getting all kinds of unwanted code insertion use FILTERS   echo filter input INPUT GET  link  FILTER SANITIZE STRING     More reading on php net function filter input  or check out the description of the different filters

[php] GET URL parameter in PHP

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