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CREATE FUNCTION `strip_tags`($str text) RETURNS text
BEGIN
DECLARE $start, $end INT DEFAULT 1;
LOOP
SET $start = LOCATE("<", $str, $start);
IF (!$start) THEN RETURN $str; END IF;
SET $end = LOCATE(">", $str, $start);
IF (!$end) THEN SET $end = $start; END IF;
SET $str = INSERT($str, $start, $end - $start + 1, "");
END LOOP;
END;
You have an error in your SQL syntax; check the manual that corresponds
to your MySQL server version for the right syntax to use near
'CREATE FUNCTION `strip_tags`($str text) RETURNS text BEGIN DECLARE $start,'
at line 2
$sql =<<< 'SQL'
DROP FUNCTION IF EXISTS `strip_tags`
CREATE FUNCTION `strip_tags`($str text) RETURNS text
BEGIN
DECLARE $start, $end INT DEFAULT 1;
LOOP
SET $start = LOCATE("<", $str, $start);
IF (!$start) THEN RETURN $str; END IF;
SET $end = LOCATE(">", $str, $start);
IF (!$end) THEN SET $end = $start; END IF;
SET $str = INSERT($str, $start, $end - $start + 1, "");
END LOOP;
END;
SQL;
$sql =<<< 'SQL'
CREATE FUNCTION `strip_tags`($str text) RETURNS text
BEGIN
DECLARE $start, $end INT DEFAULT 1;
LOOP
SET $start = LOCATE("<", $str, $start);
IF (!$start) THEN RETURN $str; END IF;
SET $end = LOCATE(">", $str, $start);
IF (!$end) THEN SET $end = $start; END IF;
SET $str = INSERT($str, $start, $end - $start + 1, "");
END LOOP;
END;
SQL;
mysql_query($sql) or die(mysql_error());
因为你使用了 php 的变量名表示,phpmyadmin 可能另做了处理
mysql_connect();
mysql_select_db('test');
$sql =<<< 'SQL'
CREATE FUNCTION `strip_tags`($str text) RETURNS text
BEGIN
DECLARE $start, $end INT DEFAULT 1;
LOOP
SET $start = LOCATE("<", $str, $start);
IF (!$start) THEN RETURN $str; END IF;
SET $end = LOCATE(">", $str, $start);
IF (!$end) THEN SET $end = $start; END IF;
SET $str = INSERT($str, $start, $end - $start + 1, "");
END LOOP;
END;
SQL;
//mysql_query($sql) or die(mysql_error());
$rs = mysql_query("select strip_tags('<a>a<a>b')");
print_r(mysql_fetch_row($rs));
Array
(
[0] => ab
)
CREATE FUNCTION `strip_tags`($str text) RETURNS text
BEGIN
DECLARE $start, $end INT DEFAULT 1;
LOOP
SET $start = LOCATE("<", $str, $start);
IF (!$start) THEN RETURN $str; END IF;
SET $end = LOCATE(">", $str, $start);
IF (!$end) THEN SET $end = $start; END IF;
SET $str = INSERT($str, $start, $end - $start + 1, "");
END LOOP;
END;
select strip_tag('<p>aaa</p>')
update tbl_name set html=strip_tag(html)