PHP - better way of checking through variables one by one - php

Question

I have a php application where users upload specific images, and the number of images can be different per user. I have a variable set on startup as false for each image that i change to true once its done.
For example one user might have to upload 3 and have so far done 2 so:
$required = 3;
$houseImageStatus1 = true;
$houseImageStatus2 = true;
$houseImageStatus3 = false;
Another then may have to upload 5 and have done them all:
$required = 5;
$houseImageStatus1 = true;
$houseImageStatus2 = true;
$houseImageStatus3 = true;
$houseImageStatus4 = true;
$houseImageStatus5 = true;
I need to be able to check that all required images have been uploaded before continuing. At the moment i have a very long-winded and ugly way be doing:
if($required==3){
if($houseImageStatus1==true &&
$houseImageStatus2==true &&
$houseImageStatus3==true){
// allow continue
}
else {
// pause
}
}
if($required==5){
if($houseImageStatus1==true &&
$houseImageStatus2==true &&
$houseImageStatus3==true &&
$houseImageStatus4==true &&
$houseImageStatus5==true){
// allow continue
}
else {
// pause
}
}
Can i do the above but in a much shorter and cleaner way? Maybe in some sort of array and loop through them as a function?

Answer 1

Use arrays for this purposse:
$houseImageStatus[1] = true;
$houseImageStatus[2] = true;
$houseImageStatus[3] = false;
and then check if all are true:
if (count(array_unique($houseImageStatus)) === 1 && $houseImageStatus[0] === true) {
// here you go
} else {
// nope
}

Answer 2

You Could use either:
Array and check for falses in array and by checking the index of array, You could determine the size (here you named it as $required).
OR
Using a counter which increments with each uploading of images....
Use different counters with different users . You dont have to give seperate variables for each user.. You could use any existing user dependant variables like user_id or user_name..

Answer 3

Store the boolean values in an array, use array_filter to remove the false values and then check the array size against your variable $required:
$houseImageStatus = array();
$houseImageStatus[0] = true;
$houseImageStatus[1] = true;
$houseImageStatus[2] = false;
// and so on
if(sizeof(array_filter($houseImageStatus)) == $required){
// everything is okay
}
else{
// something is wrong
}

Answer 4

You can do array with all values set to false:
$houseimages = array();
$n = 5; // How many pictures
for($i = 0; $i < $n; $i++) $houseimages[$i] = false; // Set all to false
And now, when user uploads one picture, just set $houseimages[0] = true; and so on.
Later just look through array and check if all values are true or not.

Answer 5

$required = 3;
$filled =0;
$houseImageStatus1 = true; $filled=$filled+1;
if ($required==$filled){//continue} else {//pause}