multi dimensional array example
C:\wamp64\www\myNerdvtest\api\teachers\posts.php:146:
array (size=5)
0 =>
array (size=4)
'id' => int 1
'age' => int 20
'class' => string 's4' (length=2)
'else' => string 'no more' (length=7)
1 =>
array (size=4)
'id' => int 2
'age' => int 23
'class' => string 's5' (length=2)
'else' => string 'no more' (length=7)
2 =>
array (size=4)
'id' => int 3
'age' => int 19
'class' => string 's3' (length=2)
'else' => string 'sturbon' (length=7)
3 =>
array (size=4)
'id' => int 4
'age' => int 27
'class' => string 's6' (length=2)
'else' => string 'aahhh' (length=5)
4 =>
array (size=4)
'id' => int 5
'age' => int 20
'class' => string 's6' (length=2)
'else' => string 'humble' (length=6)