MySQL 5.6 C API Developer Guide

7.16 mysql_escape_string()

Note

This function should not be used. Use mysql_real_escape_string() instead.

mysql_escape_string() is identical to mysql_real_escape_string() except that mysql_real_escape_string() takes a connection handler as its first argument and escapes the string according to the current character set. mysql_escape_string() does not take a connection argument and does not respect the current character set.