How to repeat php "if" 20 times? - php

Question

I'm trying to repeat php "if" 20 times with dh_c_01_01. How I can do it?
if ($dh_c_01_01['id'] == $a_c_a_max) {
$dh_sq_01_01 = $a_b_s_05;
} elseif ($dh_c_01_01['id'] == $a_c_a_1_b) {
$dh_sq_01_01 = $a_b_s_06;
} elseif ($dh_c_01_01['id'] == $a_c_a_2_b) {
$dh_sq_01_01 = $a_b_s_07;
} elseif ($dh_c_01_01['id'] == $a_c_a_3_b) {
$dh_sq_01_01 = $a_b_s_08;
} elseif ($dh_c_01_01['id'] == $a_c_a_4_b) {
$dh_sq_01_01 = $a_b_s_09;
} elseif ($dh_c_01_01['id'] == $a_c_a_5_b) {
$dh_sq_01_01 = $a_b_s_10;
} elseif ($dh_c_01_01['id'] == $a_c_a_6_b) {
$dh_sq_01_01 = $a_b_s_11;
} elseif ($dh_c_01_01['id'] == $a_c_a_7_b) {
$dh_sq_01_01 = $a_b_s_12;
} elseif ($dh_c_01_01['id'] == $a_c_a_8_b) {
$dh_sq_01_01 = $a_b_s_13;
} elseif ($dh_c_01_01['id'] == $a_c_a_9_b) {
$dh_sq_01_01 = $a_b_s_14;
}
if ($dh_c_02_01['id'] == $a_c_a_max) {
$dh_sq_02_01 = $a_b_s_05;
} elseif ($dh_c_02_01['id'] == $a_c_a_1_b) {
$dh_sq_02_01 = $a_b_s_06;
} elseif ($dh_c_02_01['id'] == $a_c_a_2_b) {
$dh_sq_02_01 = $a_b_s_07;
} elseif ($dh_c_02_01['id'] == $a_c_a_3_b) {
$dh_sq_02_01 = $a_b_s_08;
} elseif ($dh_c_02_01['id'] == $a_c_a_4_b) {
$dh_sq_02_01 = $a_b_s_09;
} elseif ($dh_c_02_01['id'] == $a_c_a_5_b) {
$dh_sq_02_01 = $a_b_s_10;
} elseif ($dh_c_02_01['id'] == $a_c_a_6_b) {
$dh_sq_02_01 = $a_b_s_11;
} elseif ($dh_c_02_01['id'] == $a_c_a_7_b) {
$dh_sq_02_01 = $a_b_s_12;
} elseif ($dh_c_02_01['id'] == $a_c_a_8_b) {
$dh_sq_02_01 = $a_b_s_13;
} elseif ($dh_c_02_01['id'] == $a_c_a_9_b) {
$dh_sq_02_01 = $a_b_s_14;
}
[$dh_sq_03_01, ... , $dh_sq_20_01]
up to 20 times

Answer 1

I cannot be sure I understand your question correctly, or assume I know what your variables are or what their values are.
Based on your question, this example uses extra variables, for loops and dynamic variables. It also assumes that each of your dynamic variables exists:
<?php
$dh_c_limit = 20; // <-- loop limit
$a_c_a_limit = 9; // <-- loop limit
$a_b_s_addition = 5; // <-- based on your question
$a_c_a_max = 0; // <-- change this to whatever '$a_c_a_max' should be!
for ($dh_i = 1; $dh_i <= $dh_c_limit; $dh_i++) {
if(${"dh_c_".str_pad($dh_i,2,"0",STR_PAD_LEFT)."_01"}['id'] == $a_c_a_max){ // <-- checks against '$a_c_a_max'
${"dh_sq_".str_pad($dh_i,2,"0",STR_PAD_LEFT)."_01"} = ${"a_b_s_".str_pad($a_c_i,2,"0",STR_PAD_LEFT)}; // <-- set the '$dh_sq_' variable to '$a_b_s_' variable
}
else{
for ($a_c_i = 1; $a_c_i <= $a_c_a_limit; $a_c_i++) {
if(${"dh_c_".str_pad($dh_i,2,"0",STR_PAD_LEFT)."_01"}['id'] == ${"a_c_a_".$a_c_i."_b"}){ // <-- checks against '$a_c_a_' variable
${"dh_sq_".str_pad($dh_i,2,"0",STR_PAD_LEFT)."_01"} = ${"a_b_s_".str_pad(($a_c_i+$a_b_s_addition),2,"0",STR_PAD_LEFT)}; // <-- set the '$dh_sq_' variable to '$a_b_s_' variable
break; // <-- break the loop
}
}
}
}
?>

Answer 2

That is a bad habit. Try to use switch case, or use array as container
$array = [
'id1' => 'action1',
'id2' => 'action2',
...
];
$dh_sq_02_01 = $array[$dh_c_02_01['id']];
Just and example. Hope helps