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Changeset 883

Timestamp:

02/17/2004 03:00:20 AM (21 years ago)

Author:

saxmatt

Message:

New *_action functions, removed alert_error.

Location:

trunk

Files:

-                      r762
+                      r883
     if (!chdir($archivespath))
         alert_error("Wrong path, $archivespath\ndoesn't exist\non the server");
+        die("Wrong path, $archivespath\ndoesn't exist\non the server");
     if (!chdir($gmpath))
         alert_error("Wrong path, $gmpath\ndoesn't exist\non the server");
+        die("Wrong path, $gmpath\ndoesn't exist\non the server");
 ?>
 <html>

-                      r881
+                      r883
         $gzip_compressed=1;
+    }
+}
-function alert_error($msg) { // displays a warning box with an error message (original by KYank)
-    global $$HTTP_SERVER_VARS;
-    ?>
-    <html>
-    <head>
-    <script language="JavaScript">
-    <!--
-    alert("<?php echo $msg ?>");
-    history.back();
-    //-->
-    </script>
-    </head>
-    <body>
-    <!-- this is for non-JS browsers (actually we should never reach that code, but hey, just in case...) -->
-    <?php echo $msg; ?><br />
-    <a href="<?php echo $HTTP_SERVER_VARS["HTTP_REFERER"]; ?>">go back</a>
-    </body>
-    </html>
-    <?php
-    exit;
+}
 …
+}
+// Filters: these are the core of WP's plugin architecture
 function apply_filters($tag, $string) {
     global $wp_filter;
 …
     //die(var_dump($wp_filter));
     return true;
+}
+// The *_action functions are just aliases for the *_filter functions, they take special strings instead of generic content
+function do_action($tag, $string) {
+    return apply_filter($tag, $string);
+}
+function add_action($tag, $function_to_add, $priority = 10) {
+    add_filter($tag, $function_to_add, $priority);
+}
+function remove_action($tag, $function_to_remove, $priority = 10) {
+    remove_filter($tag, $function_to_remove, $priority);
+}

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