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Php urlencode () function

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(PHP 3, PHP 4 , PHP 5)

urlencode -- URL-encodes string


string urlencode ( string str )

Returns a string in which all non-alphanumeric characters except -_. have been replaced with a percent (%) sign followed by two hex digits and spaces encoded as plus (+) signs. It is encoded the same way that the posted data from a WWW form is encoded, that is the same way as in application/x-www-form-urlencoded media type. This differs from the RFC1738 encoding (see rawurlencode()) in that for historical reasons, spaces are encoded as plus (+) signs. This function is convenient when encoding a string to be used in a query part of a URL, as a convenient way to pass variables to the next page:

Example 1. urlencode() example

echo '<a href="mycgi?foo=', urlencode($userinput), '">';

Note: Be careful about variables that may match HTML entities. Things like &amp, &copy and &pound are parsed by the browser and the actual entity is used instead of the desired variable name. This is an obvious hassle that the W3C has been telling people about for years. The reference is here: PHP supports changing the argument separator to the W3C-suggested semi-colon through the arg_separator .ini directive. Unfortunately most user agents do not send form data in this semi-colon separated format. A more portable way around this is to use &amp; instead of & as the separator. You don't need to change PHP's arg_separator for this. Leave it as &, but simply encode your URLs using htmlentities(urlencode($data)).

Example 2. urlencode() and htmlentities() example

echo '<a href="mycgi?foo=', htmlentities(urlencode($userinput)), '">';

See also urldecode(), htmlentities(), rawurldecode() and rawurlencode().

Php urlencode Function syntax tag

urlencode php code on this is provided for your study purpose, it will guide you to know how create and design a website using php. use it to practice and train your self online

Php urlencode syntax tutorial

php tutorial guide and code design are for easy learning and programming. The code practice section provided at the top is for practising of this syntax. Use the code section up to practice your php programming online. Learning php is very easy, all you need is to use the examples on this site and practice them to perfect your skills.

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