moved Import by LOAD DATA settings to CSV category

moved PMA_array_* functions to core.lib.php
moved PMA_read_userprefs_fieldnames() to user_preferences.lib.php
server/database/table filename templates are saved to pmadb when "remember template" is checked

libraries/core.lib.php

@@ -539,4 +539,89 @@ function PMA_getenv($var_name) {
 
     return '';
 }
+
+/**
+ * Returns value of an element in $array given by $path.
+ * $path is a string describing position of an element in an associative array,
+ * eg. Servers/1/host refers to $array[Servers][1][host]
+ *
+ * @param  string   $path
+ * @param  array    $array
+ * @param  mixed    $default
+ * @return mixed    array element or $default
+ */
+function PMA_array_read($path, $array, $default = null)
+{
+    $keys = explode('/', $path);
+    $value =& $array;
+    foreach ($keys as $key) {
+        if (!isset($value[$key])) {
+            return $default;
+        }
+        $value =& $value[$key];
+    }
+    return $value;
+}
+
+/**
+ * Stores value in an array
+ *
+ * @param  string   $path
+ * @param  array    &$array
+ * @param  mixed    $value
+ */
+function PMA_array_write($path, &$array, $value)
+{
+    $keys = explode('/', $path);
+    $last_key = array_pop($keys);
+    $a =& $array;
+    foreach ($keys as $key) {
+        if (!isset($a[$key])) {
+            $a[$key] = array();
+        }
+        $a =& $a[$key];
+    }
+    $a[$last_key] = $value;
+}
+
+/**
+ * Removes value from an array
+ *
+ * @param  string   $path
+ * @param  array    &$array
+ * @param  mixed    $value
+ */
+function PMA_array_remove($path, &$array)
+{
+    $keys = explode('/', $path);
+    $keys_last = array_pop($keys);
+    $path = array();
+    $depth = 0;
+
+    $path[0] =& $array;
+    $found = true;
+    // go as deep as required or possible
+    foreach ($keys as $key) {
+        if (!isset($path[$depth][$key])) {
+            $found = false;
+            break;
+        }
+        $depth++;
+        $path[$depth] =& $path[$depth-1][$key];
+    }
+    // if element found, remove it
+    if ($found) {
+        unset($path[$depth][$keys_last]);
+        $depth--;
+    }
+
+    // remove empty nested arrays
+    for (; $depth >= 0; $depth--) {
+        if (!isset($path[$depth+1]) || count($path[$depth+1]) == 0) {
+            unset($path[$depth][$keys[$depth]]);
+        } else {
+            break;
+        }
+    }
+}
 ?>