parse_str
parse_str
(PHP 4, PHP 5, PHP 7)
parse_str — Parses the string into variables
Description
void parse_str ( string $encoded_string [, array &$result ] )
Parses encoded_string
as if it were the query string passed via a URL and sets variables in the current scope (or in the array if result
is provided).
Parameters
-
encoded_string
-
The input string.
-
result
-
If the second parameter
result
is present, variables are stored in this variable as array elements instead.WarningUsing this function without the
result
parameter is highly DISCOURAGED and DEPRECATED as of PHP 7.2.Dynamically setting variables in function's scope suffers from exactly same problems as register_globals.
Read section on security of Using Register Globals explaining why it is dangerous.
Return Values
No value is returned.
Changelog
Version | Description |
---|---|
7.2.0 | Usage of parse_str() without a second parameter now emits an E_DEPRECATED notice. |
Examples
Example #1 Using parse_str()
<?php $str = "first=value&arr[]=foo+bar&arr[]=baz"; // Recommended parse_str($str, $output); echo $output['first']; // value echo $output['arr'][0]; // foo bar echo $output['arr'][1]; // baz // DISCOURAGED parse_str($str); echo $first; // value echo $arr[0]; // foo bar echo $arr[1]; // baz ?>
Because variables in PHP can't have dots and spaces in their names, those are converted to underscores. Same applies to naming of respective key names in case of using this function with result
parameter.
Example #2 parse_str() name mangling
<?php parse_str($"My Value=Something"); echo $My_Value; // Something parse_str($"My Value=Something", $output); echo $output['My_Value']; // Something ?>
Notes
Note:
All variables created (or values returned into array if second parameter is set) are already urldecode()d.
Note:
To get the current QUERY_STRING, you may use the variable $_SERVER['QUERY_STRING']. Also, you may want to read the section on variables from external sources.
Note:
The magic_quotes_gpc setting affects the output of this function, as parse_str() uses the same mechanism that PHP uses to populate the $_GET, $_POST, etc. variables.
See Also
- parse_url() - Parse a URL and return its components
- pathinfo() - Returns information about a file path
- http_build_query() - Generate URL-encoded query string
- urldecode() - Decodes URL-encoded string
© 1997–2017 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://secure.php.net/manual/en/function.parse-str.php