How To Find a Value and Use it in PHP? - php

Question

My goal is to do this :
Get the value from variable
Check the value
Change to thousands depending on the value
Use the new value.
Example :
$input = 12345
//Code to detect input is in thousands or hundreds
$input = 12345 ==> $change = 12000 / 10000
My Goal is to achieve $change, where the code could detect the input and return whether or not it's in hundreds or thousands and so forth.
The Answer I arrived in after combining all of your opinions :
$maxBarChart= max($countBarChart1,$countBarChart2,$countBarChart3); //The inputs
$length = strlen(strval($maxBarChart)); // Get the length
//Checks
if($length==1){
$numberBarChart = floor($maxBarChart/1);
$totalBarChart = ($numberBarChart*1)+5;
}
elseif($length==2){
$numberBarChart = floor($maxBarChart/10);
$totalBarChart = ($numberBarChart*10)+50;
}
elseif($length==3){
$numberBarChart = floor($maxBarChart/100);
$totalBarChart = ($numberBarChart*100)+500;
}
elseif($length==4){
$numberBarChart = floor($maxBarChart/1000);
$totalBarChart = ($numberBarChart*1000)+5000;
}
elseif($length==5){
$numberBarChart = floor($maxBarChart/10000);
$totalBarChart = ($numberBarChart*10000)+50000;
}
elseif($length==6){
$numberBarChart = floor($maxBarChart/100000);
$totalBarChart = ($numberBarChart*100000)+500000;
}
elseif($length==7){
$numberBarChart = floor($maxBarChart/1000000);
$totalBarChart = ($numberBarChart*1000000)+5000000;
}
elseif($length==8){
$numberBarChart = floor($maxBarChart/10000000);
$totalBarChart = ($numberBarChart*10000000)[phone];
}
elseif($length==9){
$numberBarChart = floor($maxBarChart/100000000);
$totalBarChart = ($numberBarChart*100000000)[phone];
}
elseif($length==10){
$numberBarChart = floor($maxBarChart/1000000000);
$totalBarChart = ($numberBarChart*1000000000)[phone];
}
Although it's crude and inefficent but the code works and achieved what I was aiming for, the post was made to find out about the floor function and strlen idea.
Thank You Everyone who advised and answered my post.

Answer 1

Use the floor() function and divide by 1000 to get the number of thousands in your input :
$change = floor($input/1000) //12
The same way, you get the number of hundreds :
$change = floor($input/100) //123
If the result is 0 (with an input of 143 for example), that means there is no thousand in it. You should divide by 10 and try it out with 100 :
if(floor($input/1000) == 0) {
if(floor($input/100 == 0)) {
//...
}
} else {
$change = floor($input/1000);
}
You may do the same into a for loop with a step of /10 to try thousands, hundreds etc.
If you need to get the rest, use the modulo operator.
For example, 120 % 100 = 20. Also, 12345 % 10000 = 2345.