php4

I'm have build an up php script to host large number of images upload by user, what is the best way to generate random numbers to image filenames so that in future there would be no filename conflict? Be it like Imageshack. Thanks. Keep a persistent list of all the previous numbers you've generated(in a database table or in a file) and check that a newly generated number is not amongst the ones on the list. If you find this to be prohibitively expensive, generate random numbers on a sufficient number of bits to guarantee a very low probability of collision. You can also use an incremental

Is there a way to define a function in PHP that lets you define a variable amount of parameters? in the language I am more familiar with it is like so: function myFunction(...rest){ /* rest == array of params */ return rest.length; } myFunction("foo","bar"); // returns 2; Thanks! Yes. Use func_num_args() and func_get_arg() to get the arguments: <?php function dynamic_args() { echo "Number of arguments: " . func_num_args() . "<br />"; for($i = 0 ; $i < func_num_args(); $i++) { echo "Argument $i = " . func_get_arg($i) . "<br />"; } } dynamic_args("a", "b", "c", "d", "e"); ?> In PHP 5.6+ you can

i need to know which is better gd or imagemagick to resize an image I like ImageMagick better. But I know GD it's pretty good too. Here's an example on how to resize an image using PHP: <?php if(!extension_loaded('imagick')) { dl('imagick.so'); } $img = strip_tags($_GET['imagename']); if(isset($_GET['size'])) { $size = strip_tags($_GET['size']); } else { $size = 0; } if(isset($_GET['vsize'])) { $vsize = strip_tags($_GET['vsize']); } else { $vsize = 0; } $image = new Imagick($img); $image->thumbnailImage($size, $vsize); header("Content-type: image/png"); print $image; ?> Here is the link where

As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. We have to move around 50+ Applications (small / large) to PHP 5.3 (from PHP 4.1). Does some has any experience with such an task? Time needed Tools Best setup for environment (Servers/Test?) Does it make sense to move first to PHP 5.2? Is there any way to

Is there a trick in PHP 4 to implement functions which return functions? I expected that the following code would work: function xxx($a) { return function($b) { print "a=$a, b=$b \n"; } } $f1 = xxx(1); $f1(2); Unfortunately, no luck in PHP 4. Probably it works in PHP 5, but I limited to PHP 4. I tried to workaround with OO, but again failed (class declarations may not be nested): class Closure { function run($a) { print "raise: NotImplementedException, instead: $a\n"; } } class WantCheckNesting extends Closure { function run($a, $b) { class Nested extends Closure { function run($c) { print "a=