Code _ php example

In fact, the principle is to judge through the php session and determine the different session values before and after posting. friends who need it can play randimage. php freely

The code is as follows:

/*
+ ----------------------------------------------------------- +
| By Bleakwind http://www.weaverdream.com
+ ----------------------------------------------------------- +
*/
$ Dir = "images/"; // image directory, which is displayed by name...
$ Imgwidth = 0; // the image width. if it is 0, the original size is used.
$ Iforder = 1; // The sequence is displayed randomly. 1 is displayed sequentially, and 0 is displayed randomly.
$ Ifcircle = 0; // whether to play cyclically when the sequence is displayed. 1 indicates loop playback, and 0 indicates non-repeating.

Session_start ();
If ($ imgwidth = 0) {$ imgwidth = "";} else {$ imgwidth = "width = '". $ imgwidth ."'";}
$ Handle = opendir ($ dir );
While ($ file_name = readdir ($ handle )){
If ($ file_name! = ".") & ($ File_name! = "..") {$ File_list [] = $ file_name ;}
}
Closedir ($ handle );

If ($ iforder = 1 ){
If (isset ($ _ SESSION ['sess _ order']) {
If ($ _ SESSION ['sess _ order']
$ _ SESSION ['sess _ order'] ++;
} Else {
If ($ ifcircle = 1 ){
$ _ SESSION ['sess _ order'] = 0;
}
}
} Else {
$ _ SESSION ['sess _ order'] = 0;
}
$ I = $ _ SESSION ['sess _ order'];
} Else {
$ Num = count ($ file_list)-1;
$ I = rand (0, $ num );
}

Readfile ($ dir. $ file_list [$ I]);
?>

Call

The code is as follows: