Questions tagged as 'mysqli'

2
answers

Warning: mysqli_num_rows () expects parameter 1 to be mysqli_result, boolean given in C: \ wamp \ www \ Login form \ validar.php on line 10 [duplicate]

<?php $usuario=$_POST['usuario']; $clave=$_POST['calve']; //conectar a la base de datos $conexion=mysqli_connect("localhost", "bdpureba"); $consulta="SELECT * FROM usuarios WHERE usuario='$usuario' and clave='$clave'"; $resultado=mysqli_que...
asked by 07.08.2018 / 22:05
1
answer

How to calculate average, apply rule of 3 and compare percentages obtained within for loops?

I have in a table stored the grades and number of absences of three periods, of students. These were sent by an arrangement sending in the same the qualification and the absences: partial1 [0] = qualification, partial1 [1] = non-attendance. Now...
asked by 19.12.2016 / 09:09