PHP CMap::makeCopy方法代码示例

 public function testMakeCopy()
 {
     $map0 = CMap::make();
     $map0["one"] = "a";
     $map0["two"] = "b";
     $map0["three"] = "c";
     $map1 = CMap::makeCopy($map0);
     $this->assertTrue($map0["one"] === $map1["one"] && $map0["two"] === $map1["two"] && $map0["three"] === $map1["three"]);
     $map0["one"] = "d";
     $this->assertTrue($map1["one"] === "a");
 }

 /**
  * Composes a URL query into a query string ready to be used as a part of a URL and returns it.
  *
  * Any characters that cannot be represented literally in a valid query string come out percent-encoded. The
  * resulting query string never starts with "?".
  *
  * Because the characters in field named and field values are stored in their literal representations, the
  * resulting query string is always normalized, with only those characters appearing percent-encoded that really
  * require it for the query string to be valid and with the hexadecimal letters in percent-encoded characters
  * appearing uppercased. Also, no duplicate fields are produced in the resulting query string (even if the object
  * was constructed from a query string with duplicate fields in it) and "=" is added after any field name that goes
  * without a value and is not followed by "=".
  *
  * @param  bool $sortFields **OPTIONAL. Default is** `false`. Tells whether the fields in the query string should
  * appear sorted in the ascending order, case-insensitively, and with natural order comparison used for sorting.
  *
  * @return CUStringObject The query string.
  */
 public function queryString($sortFields = false)
 {
     assert('is_bool($sortFields)', vs(isset($this), get_defined_vars()));
     if (!CMap::isEmpty($this->m_query)) {
         $useQuery = CMap::makeCopy($this->m_query);
         // Recursively convert any CArray into a CMap for `http_build_query` function to accept the query.
         $useQuery = self::recurseQueryValueBeforeComposingQs($useQuery, 0);
         // Compose a preliminary query string.
         $queryString = http_build_query($useQuery, "", self::$ms_fieldDelimiters[0], PHP_QUERY_RFC1738);
         if (!is_cstring($queryString)) {
             return "";
         }
         // Break the string into fields.
         $fields = CString::split($queryString, self::$ms_fieldDelimiters[0]);
         // Adjust the result of `http_build_query` function.
         $len = CArray::length($fields);
         for ($i = 0; $i < $len; $i++) {
             if (CString::find($fields[$i], "=")) {
                 // Revert excessive percent-encoding of the square brackets next to the identifiers of
                 // multidimensional data.
                 $fields[$i] = CRegex::replaceWithCallback($fields[$i], "/(?:%5B(?:[^%]++|%(?!5B|5D))*+%5D)+?=/i", function ($matches) {
                     $value = $matches[0];
                     $value = CString::replace($value, "%5B", "[");
                     $value = CString::replace($value, "%5D", "]");
                     return $value;
                 });
                 // Remove redundant indexing next to the identifiers of simple arrays.
                 $fields[$i] = CRegex::replaceWithCallback($fields[$i], "/^.+?=/", function ($matches) {
                     return CRegex::replace($matches[0], "/\\[\\d+\\]/", "[]");
                 });
             }
         }
         if ($sortFields) {
             // Normalize the order of fields.
             CArray::sortStringsNatCi($fields);
         }
         $queryString = CArray::join($fields, self::$ms_fieldDelimiters[0]);
         return $queryString;
     } else {
         return "";
     }
 }