On Tue, July 10, 2007 5:59 pm, k w wrote: > I'm trying to make a button execute some php code when the button is > clicked. I'm not sure if it is the button i'm coding wrong or the php > code. > Here is the code I am using. > > <?php > echo "<button action='<?php > mysqli_query($connect,$query)?>'Click</button>"; > ?> [sportscaster voice-over] Joe: Hey Bob, let's look at a slow-motion instant-replay of this common PHP newbie fallacy scenario Bob: Sure Joe! Joe: Okay, so here goes: The user requests a HTTP URL document. The webserver fires up. The webserver finds that it needs PHP to generate the document. PHP fires up. Bob: Wow, look at it go! That's fast! Joe: Yeah, it is fast. PHP has generated the document, and spits it out. Bob: Boy, it's already finished. Hey, it's quit! Joe: That's right, Bob. PHP has FINISHED EXECUTION, and has exited. Now watch this! Bob: Oh boy, I see it coming now... Joe: Yep, there it is. There's some HTML in the browser, trying to execute some PHP code... Bob: But you can see, PHP has LONG FINISHED and is OUTTA HERE!!! Joe: That's right, Bob, PHP is simply not around to execute that code. Bob: So what can you do, Joe? Joe: Well, if you can live with the browser going back-n-forth to the web-server, with a significant "lag" time... Bob: Oooh, well, I can see how that might be useful sometimes... Joe: In those cases, you can use Ajax. Bob: Anything else? Joe: Not really. Until you get back to the webserver and PHP, there's just no PHP available. Unless your user is in the extreme minority of uber-PHP-geeks that has installed this EXPERIMENTAL PHP browser plug-in thingie: http://pecl.php.net/package/PHPScript Bob: Whoa, Joe, I don't think I've ever even heard of anybody who's ever installed that. Joe: Me neither, though I met Wez Furlong who wrote it, so I have to assume HE has installed it at least once... [cue to cool Guinness commercial] -- Some people have a "gift" link here. Know what I want? I want you to buy a CD from some indie artist. http://cdbaby.com/browse/from/lynch Yeah, I get a buck. So? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
