On Fri, Jun 4, 2010 at 09:54, Michael Calkins <[email protected]> wrote:
>
> I would google this but I have no idea what this method is or how it works.
> app.php?ph=cus&id=4
> Can some tell me what this either called or how it works?Can I get a tutorial
> for it please?
Split up, it is:
app.php The filename and extension
?ph=cus&id=4 An HTTP query string
? Start of HTTP query string
ph A parameter name 'ph' which is
accessible in this case via the $_GET superglobal array
= The equals operator assigns a value to
a variable
cus The value of the parameter 'ph'
assigned in the HTTP query string given
& The ampersand indicates that another
parameter (variable) will be concatenated with the HTTP query string
id A second parameter name 'id'
= Again, for variable assignment
4 The value of the 'id' variable
assigned in the HTTP query string given
To read this information, the app.php script could be accessed in
a regular web browser with the query string given appended as you
provided. If it's accessed via an HTTP request to a web server or
other PHP-enabled application, the code to parse the information could
be as follows:
<?php
/***
* To see if a specific parameter was passed within
* the HTTP query string, we can simple check the
* $_GET superglobal like any other array, like so:
*/
if (isset($_GET['foo'])) {
echo "The 'foo' parameter was passed to me, and equals '".$foo."'";
}
// Simple check to see if a variable equals a static value or not
if ($_GET['ph'] == 'cus') {
echo "Yes, 'ph' equals 'cus'.";
} else {
echo "No, 'ph' does not equal 'cus'.";
}
// Dump the array to the screen without basic details
var_dump($_GET);
// Dump the array without details, but with simple text formatting
echo "<pre>".PHP_EOL;
print_r($_GET);
echo "</pre>".PHP_EOL;
// Print it all out with basic formatting
foreach ($_GET as $k => $v) {
echo "<b>".$k." = ".$v."<br />".PHP_EOL;
}
?>
For more information, check the PHP manual and Google for
superglobals and the fundamentals of using PHP in a web-based
environment.
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