Added header_remove() (chsc at peytz dotdk, Arnaud)

[DOC] proto void header_remove([string header_name])
      Removes an HTTP header previously set using header()
      The header_name parameter is optionnal, all headers are
      removed if it is not set

[SAPIs] The header_handler callback in sapi_module_struct has
           been changed, it now take a new argument.

           When it is set to SAPI_HEADER_DELETE, sapi_header->header is
           the name of an header, header_handler has to delete it.

           When it is set to SAPI_HEADER_DELETE_ALL, header_handler has
           to delete all headers.

           When sapi_header_op_enum is SAPI_HEADER_ADD or _REPLACE,
           sapi_header->header is in the form "Name: value", header_handler
           has to add or replace the given header.

           In all cases, header_handler must not free sapi_header or
           sapi_header->header. SAPI_HEADER_ADD must be returned if the
           header has been added or replaced, or 0 in other cases.

1 files changed, 14 insertions, 0 deletions

diff --git a/ext/standard/head.c b/ext/standard/head.c
index 3e6c59f133..bcb7f37963 100644
--- a/ext/standard/head.c
+++ b/ext/standard/head.c
@@ -50,6 +50,20 @@ PHP_FUNCTION(header)
 }
 /* }}} */
 
+/* {{{ proto void header_remove([string name])
+   Removes an HTTP header previously set using header() */
+PHP_FUNCTION(header_remove)
+{
+	sapi_header_line ctr = {0};
+
+	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s", &ctr.line,
+	                          &ctr.line_len) == FAILURE)
+		return;
+
+	sapi_header_op(ZEND_NUM_ARGS() == 0 ? SAPI_HEADER_DELETE_ALL : SAPI_HEADER_DELETE, &ctr TSRMLS_CC);
+}
+/* }}} */
+
 PHPAPI int php_header(TSRMLS_D)
 {
 	if (sapi_send_headers(TSRMLS_C)==FAILURE || SG(request_info).headers_only) {