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PHP: new global variables |
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Hertzsprung (09:32 29/7/2002)
alpha (10:09 29/7/2002)
Hertzsprung (10:34 29/7/2002)
alpha (13:11 29/7/2002)
Hertzsprung (13:35 29/7/2002)
alpha (14:17 29/7/2002)
Hertzsprung (14:19 29/7/2002)
alpha (15:32 29/7/2002)
Hertzsprung (08:57 30/7/2002)
alpha (09:32 30/7/2002)
Hertzsprung (10:17 30/7/2002)
alpha (14:23 30/7/2002)
Hertzsprung (14:24 30/7/2002)
alpha (14:37 30/7/2002)
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James Shaw |
Message #17183, posted by Hertzsprung at 09:32, 29/7/2002 |
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I've just had another look at PHP (I used it about six months ago) to find that new "superglobals" have been made, such as $_POST[] and $_SESSION[].
What do people think about these? Should we use them yet (becuase they are quite new), or should we assume that register_globals is set in php.ini?
I see this as a move towards the ASP way of doing things - I believe ASP has always had such variables? |
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Tim Fountain |
Message #17195, posted by alpha at 10:09, 29/7/2002, in reply to message #17183 |
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If you're using PHP >= 4.1.0 then use the super globals. It's good to get in the habit  |
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James Shaw |
Message #17204, posted by Hertzsprung at 10:34, 29/7/2002, in reply to message #17195 |
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Do web servers tend to have the register_globals param configured for this? |
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Tim Fountain |
Message #17234, posted by alpha at 13:11, 29/7/2002, in reply to message #17204 |
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The default setting for register_globals in PHP >4.2.0 is off, so yes. The super global arrays will always be present if you're running >4.1.0. |
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James Shaw |
Message #17238, posted by Hertzsprung at 13:35, 29/7/2002, in reply to message #17234 |
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So the superglobal arrays still exist in <4.2.0, alongside the global variables automatically created? |
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Tim Fountain |
Message #17242, posted by alpha at 14:17, 29/7/2002, in reply to message #17238 |
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The super global arrays were introduced in PHP 4.1.0, so they don't exist in versions before that. The other global variables are depreceated as of 4.2.0 I think. |
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James Shaw |
Message #17243, posted by Hertzsprung at 14:19, 29/7/2002, in reply to message #17242 |
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IMHO, they should have been introduced a long long time ago. |
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Tim Fountain |
Message #17248, posted by alpha at 15:32, 29/7/2002, in reply to message #17243 |
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It's a better system, yes; but there were equivalents before - $HTTP_COOKIE_VARS etc. |
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James Shaw |
Message #17275, posted by Hertzsprung at 08:57, 30/7/2002, in reply to message #17248 |
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Changing the subject slightly - does anyone know how the data is received from a MULTIPLE SELECT form control (ie into a PHP array)? I guess its something to do with the HTTP POST gubbins  |
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Tim Fountain |
Message #17277, posted by alpha at 09:32, 30/7/2002, in reply to message #17275 |
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If you call the field something like myfield[], then it'll end up in an array called $myfield. Again how you access it depends what version of PHP you're running, but if it's a recent one then you'll find it in $_POST['myfield']. |
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James Shaw |
Message #17278, posted by Hertzsprung at 10:17, 30/7/2002, in reply to message #17277 |
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I realise that, but I am wondering how it works behing the scences - what data is posted? How is the SELECT MULTIPLE control's data sent? |
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Tim Fountain |
Message #17303, posted by alpha at 14:23, 30/7/2002, in reply to message #17278 |
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I'm not exactly sure what you're asking. The select multiples will be submitted in the same way as any other form post data, but if you include square brackets on the end of the field name PHP can turn the info into an array. |
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James Shaw |
Message #17304, posted by Hertzsprung at 14:24, 30/7/2002, in reply to message #17303 |
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Is there a way (in Javascript) to fake a SELECT MULTIPLE control? |
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Tim Fountain |
Message #17307, posted by alpha at 14:37, 30/7/2002, in reply to message #17304 |
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My javascript knowledge is very basic, but I wouldn't have thought you could do that. |
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