If i have a variable like
$volume = 'IV, no. 33';
$query = "Select post_id FROM wp_postmeta where meta_value LIKE ".$volume."
It show error.
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 ' no. 33
So what is the correct way for search with special characte.
你忘了报价
$query = "Select post_id FROM wp_postmeta where meta_value LIKE '".$volume."'";
You have to put quotes around your string value
$volume = 'IV, no. 33';
$query = "Select post_id FROM wp_postmeta where meta_value LIKE ".$volume."
Should be
$volume = 'IV, no. 33';
$query = "Select post_id FROM wp_postmeta where meta_value LIKE '".$volume."'";
Use the below code:
$volume = 'IV, no. 33';
$query = "Select post_id FROM wp_postmeta where meta_value LIKE '".$volume."'";
Use the single quota to tell the query that it is a string.
LIKE ".$volume."
to
LIKE '".$volume."'
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