How to count array result after submit form using codeigniter - php

Question

I want to create leveling system with Codeigniter.
I retrieve all criteria from the table, then User fill the quistionare and finally system make a decission, level 1, level 2, or level 3.
Here is my controller:
if ($this->input->post('submit_asesmen')) {
$hitung_asesmen=count($_POST['id_komponen']);
$level='';
for ($i=0; $i < $hitung_asesmen; $i++) {
$id_asesmen=$_POST['id_komponen'][$i];
$yes=$_POST['yesorno'][$i];
$bukti=$_POST['cek'][$i];
$lihat_level=$this->m_asesmen->select_level($id_asesmen);
$data_asesmen = array(
'id_komponen_asesmen' => $id_asesmen,
'yes_or_no' => $yes,
'level' => $lihat_level,
);
$hitung_level_1=$this->m_asesmen->jml_level_1();
$macam_level_1=$this->m_asesmen->macam_level_1();
if ($lihat_level=='1' && $yes=='1') {
echo "Level 1 <br>";
}
else{
echo "Level 0 <br>";
}
}
}
My temporary output is like
Level 1
Level 0
Level 0
Level 0
Level 1
Level 1
Level 1
Level 1
Level 0
Level 0
Level 0
How to create output like : ?
Level 0 : 6 values
Level 1 : 5 values

Answer 1

This can be achieved with PHP's function array_count_values(). Just pass your array to this function and it will return an associative array containing the value/count pairs.
Example:
$tempOutput = array('Level 1', 'Level 0', 'Level 0', 'Level 0', 'Level 1', 'Level 1', 'Level 1', 'Level 1', 'Level 0', 'Level 0', 'Level 0');
// will return array('Level 1' => 5, 'Level 0' => 6);
$newOutput = array_count_values($tempOutput);
Since in your code you do not save the values in an array, it would be a better and easier solution to manually count the values:
// array holding the counts for each level
$levels = [];
if ($this->input->post('submit_asesmen')) {
$hitung_asesmen=count($_POST['id_komponen']);
$level='';
for ($i=0; $i < $hitung_asesmen; $i++) {
$id_asesmen=$_POST['id_komponen'][$i];
$yes=$_POST['yesorno'][$i];
$bukti=$_POST['cek'][$i];
$lihat_level=$this->m_asesmen->select_level($id_asesmen);
$data_asesmen = array(
'id_komponen_asesmen' => $id_asesmen,
'yes_or_no' => $yes,
'level' => $lihat_level,
);
$hitung_level_1=$this->m_asesmen->jml_level_1();
$macam_level_1=$this->m_asesmen->macam_level_1();
if ($lihat_level=='1' && $yes=='1') {
echo "Level 1 <br>";
}
else{
echo "Level 0 <br>";
}
// check if a count exists in $levels
if(!isset($levels[$lihat_level])) {
// count does not exist, initialize with 1
$levels[$lihat_level] = 1;
} else {
// count already exists, increase by 1
$levels[$lihat_level] ++;
}
}
}
// And this will create the desired output like you wrote it in your question
foreach($levels as $level => $count) {
echo 'Level ' . $level . ' : ' . $count . ' values<br />';
}

Answer 2

Nice Example but it doesn't explain every well what he really wants
Try out this
Example
$arr = array("Level 1","Level 2","Level 3", "Level 4");
$newData = array_count_values($arr);
foreach($arr as $data){
echo $data.": ".$newData[$data]." value<br>";
}
Result
Level 1: 1 value
Level 2: 1 value
Level 3: 1 value
Level 4: 1 value

Answer 3

if ($this->input->post('submit_asesmen')) {
$hitung_asesmen=count($_POST['id_komponen']);
$level='';
// Define Level Array
$levels_ary=array();
for ($i=0; $i < $hitung_asesmen; $i++) {
$id_asesmen=$_POST['id_komponen'][$i];
$yes=$_POST['yesorno'][$i];
$bukti=$_POST['cek'][$i];
$lihat_level=$this->m_asesmen->select_level($id_asesmen);
$data_asesmen = array(
'id_komponen_asesmen' => $id_asesmen,
'yes_or_no' => $yes,
'level' => $lihat_level,
);
$hitung_level_1=$this->m_asesmen->jml_level_1();
$macam_level_1=$this->m_asesmen->macam_level_1();
if ($lihat_level=='1' && $yes=='1') {
$levels_ary[]="Level 1";
}
else{
$levels_ary[]="Level 0";
}
}
print_r(array_count_values($levels_ary));
}