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how do i get mysql warning messages in php (not error)
原标题:

i want to execute a sql at php which does something like changing a text column into int column.

however, this sql failed to fun at php and succeeds in my mysql admin tool (sqlyog). server responses "1 row(s) affected. 1 warning(s)". but "SHOW WARNINGS" didn t pop up anything and not surprisingly, php s mysql_error() didn t return anything.

thanks.

最佳回答

The best is to use the mysqli extension instead of the old mysql extension, as mysqli supports all of MySQL s features and offers the mysqli_get_Warnings() function. Without mysqli you can do mysql_query("SHOW WARNINGS"); (see SHOW WARNINGS docs) and then read the warnings from the result set.

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