How to add and divide php values

Question

I'm building a grading system and I want "+" and "/"

like this :

for example: c71st="89" c72nd="90" c73rd="89" c74th="70"

<?php echo $userinfo['c71st'] ?> + <?php echo $userinfo['c71st'] ?> + <?php 
echo $userinfo['c71st'] ?> + <?php echo $userinfo['c71st'] ?> /2

how can I add and divide this ? when I type + it only display + sign in php form or html

this is different from other questions

Possible duplicate of [Reference - What does this symbol mean in PHP?](http://stackoverflow.com/questions/3737139/reference-what-does-this-symbol-mean-in-php) — LF00, May 03 '17 at 04:32

score 0 · Answer 1 · answered May 03 '17 at 04:06

0

just add and divide them on php. not in html or javascript

<?php echo ($userinfo['c71st'] + $userinfo['c71st'] + $userinfo['c71st'])/2; ?>

answered May 03 '17 at 04:06

Chinito

1,085
1
9
11

how can i do this inside of php ? like this echo " – Jasmin Laroa Naul May 03 '17 at 04:26
you don't need to echo an element because you can just create an html element with a php script in a php file – Chinito May 03 '17 at 05:20

score 0 · Answer 2 · answered May 03 '17 at 04:10

0

First You have to create $userinfo array

<?php
    $userinfo = array("c71st"=> 89, "c72nd"=> 90, "c73rd"=> 89, "c74th"=> 70);
    echo ($userinfo['c71st'] + $userinfo['c71st'] + $userinfo['c71st'] + $userinfo['c71st']) / 2 ;
    ?>

answered May 03 '17 at 04:10

Aman Kumar

4,533
3
18
40

will try this :) wait – Jasmin Laroa Naul May 03 '17 at 04:15
how can i do this inside of php ? like this echo " – Jasmin Laroa Naul May 03 '17 at 04:26
What to want to create, please elaborate your query with your code . ? – Aman Kumar May 03 '17 at 04:29
I want do to that inside of php with select inside – Jasmin Laroa Naul May 03 '17 at 04:32
Show me your html code where you implement your php – Aman Kumar May 03 '17 at 04:34

How to add and divide php values

2 Answers2