用PHP开发GUI（一个简单的例子）

环境：W2k+php4.3.1+php/gtk0.5.2

一个简单的记事本（只可以打开文件进行修改）

<?phpset_time_limit (0);

// 设置运行时间if (!class_exists ("gtk"))

// 判断是否有GTK模块

if (strtoupper (substr ($_SERVER["OS"], 0, 3)) == "WIN")

dl ("php_gtk.dll");

else

dl ("php_gtk.so");$window = &new GtkWindow ();

// 建一个窗口$window->set_uposition (100, 100);

//

窗口出现位置$window->set_usize ((gdk::screen_width()-200), (gdk::screen_height()-150));

// 窗口大小$window->set_title ("WINDOWS");

// 设置窗口标题$window->connect_object ('destroy', array ('gtk', 'main_quit'));

// 注册窗口的事件$vbox = &new GtkVBox ();

$hbox = &new GtkHBox ();

$window->add ($vbox);$menuBar = &new GtkMenuBar ();

// 创建菜单$vbox->pack_start ($menuBar, false, false, 0);$file = &new GtkMenuItem ("File");$menuBar->append ($file);$fileMenu = &new GtkMenu ();$open = &new GtkMenuItem ("Open");$save = &new GtkMenuItem ("Save");$line = &new GtkMenuItem ();$line->set_sensitive (true);$exit = &new GtkMenuItem ("Exit");$fileMenu->append ($open);$open->connect_object ('activate', 'showFileSelection');

$fileMenu->append ($save);$save->connect_object ('activate', 'saveFile');$fileMenu->append ($line);$fileMenu->append ($exit);$exit->connect_object ('activate', array ('gtk', 'main_quit'));$file->set_submenu ($fileMenu);$scroll = &new GtkScrolledWindow ();$scroll->set_border_width (8);$scroll->set_policy (GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);$hbox->pack_start ($scroll, true, true, 0);$vbox->pack_start ($hbox, true, true, 1);$text = &new GtkText ();$text->set_editable (true);$text->set_word_wrap (true);$scroll->add ($text);function showFileSelection ()

// 文件选择函数{

$file = &new GtkFileSelection ("File Selection");

$ok_button = $file->ok_button;

$ok_button->connect ('clicked', 'openFile', $file);

$ok_button->connect_object ('clicked', array ($file, 'destroy'));

$cancel_button = $file->cancel_button;

$cancel_button->connect_object ('clicked', array ($file, 'destroy'));

$file->show ();}$filePath = null;function openFile ($button, $f)

// 打开文件的函数{

GLOBAL $text, $save, $filePath;

$filePath = $f->get_filename ();

if (is_file ($filePath))

{

$fp = fopen ($filePath, 'r');

while (!feof ($fp))

$str .= fgets ($fp, 1024);

$text->insert (null, null, null, $str);

fclose ($fp);

return $filePath;

}}function saveFile ()

// 保存文件的函数{

GLOBAL $filePath, $text;

if (is_file ($filePath))

{

$str = $text->get_chars (0, -1);

$fp = fopen ($filePath, 'w');

fwrite ($fp, $str);

fclose ($fp);

}

return;}$window->show_all ();

// 显示窗体内的所有控件gtk::main ();

// 最重要的一句，不可少的?>

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