Nested loop logic - php

Question

I have this code block
<?php
$myArray = array('a', 'b', 'c');
foreach ($myArray as $k => $v) {
echo $v;
for ($i = 1; $i < 5; $i++) {
if ($i == $k) {
break;
}
echo $i; //a1234bc1
}
}
?>
and I have no problem with it until I get to the value after c. Shouldn't be 1234 instead of 1 ? am I missing something?

Answer 1

Because,
In the first iteration in foreach value of $k is 0 and there is no 0 in for loop, it covers all and print all 1 to 4, so output is a1234
In the second iteration in foreach value of $k is 1 and for loop start from 1,so in if condition it is in first iteration, so loop stop in first iteration of for loop and print only b , so output is a1234b
similarly in third iteration in foreach value of $k is 2 and for loop start from 1,so in if condition it is in second iteration, so loop stop in second iteration of for loop after print c1 , so output is a1234bc1
I think now its clear to you.

Answer 2

You foreach ($myArray as $k => $v) loop is executed 3 times as $myArray has 3 Elements.
First run
$k = 0 which is the index of the first element, $v = "a"
echo $v; // Outputs a
Output of your loop
for ($i = 1; $i < 5; $i++) { ... }
Outputs all numbers from 1 to 5 and stops once the exact value of $k is met. $k is 0 so the condition (break) never gets triggered. Hence all numbers from 1 to 5 are echoed.
Output so far:
a1234
Second run
$k = 1 which is the index of the second element, $v = "b"
for ($i = 1; $i < 5; $i++) { ... }
Output of your loop
for ($i = 1; $i < 5; $i++)
Outputs all numbers from 1 to 5 and stops once the exact value of $k is met. As $k is 1 the break gets executed on first run of llop, hence no output.
Output so far:
a1234b
Third run
$k = 2 which is the index of the third element, $v = "c"
echo $v; // Outputs c
Output of your loop
for ($i = 1; $i < 5; $i++) { ... }
Outputs all numbers from 1 to 5 and stops once the exact value of $k is met. As $k euqals 2 this time the loop gets executed once outputting 1. On second run the break executes and terminates oputput
Final output:
a1234bc1

Answer 3

1st Iteration:
1st loop
$k = 0; $v = a;
2nd loop
$i doesn't equal $k;
Output: a1234
2nd Iteration:
1st loop
$k = 1; $v = b;
2nd loop
$i equals $k(i.e 1);
Output: a1234b
3nd Iteration:
1st loop
$k = 2; $v = c;
2nd loop
$i equals $k(i.e 2);
Output: a1234bc1

Answer 4

Try this
$myArray = array('a', 'b', 'c');
foreach ($myArray as $k => $v) {
echo $v;
for ($i = 1; $i < 5; $i++) {
echo $i; //a1234b1234c1234
}
}
Remove if condition .