php - Values Cannot be read by MySQL? -
i have query in mysql, have values in database there comma example (monday, tuesday). reads data if there 1 inside (monday) or (tuesday) when data more 1 , comma mysql doesn't read it. i've tried charindex didn't work or maybe used wrong syntax. help.
here's snippet want read data
if (date_format(ts.`date`, '%w') <> r.`number`, 0, 1) 'restday'
i tried
if (charindex(date_format(ts.`date`, '%w') <> r.`number`, 0, 1)) 'restday'
but sends error message
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