Description:
------------
In the gdb script .gdbinit , the life cycle of a variable is the whole calling procedure as soon as it is declared, instead of the block of function where it is declared in .
in the print_cvs , variable $i is used to count the offset of the CVs.
(If you want to use print_cvs , maybe you must use the EX_CV_NUM() macro to fix the bug 70008 [ https://bugs.php.net/bug.php?id=70008 ] )
Then it call `printzv`. But in the function printzv , when the zvalue's type is 4 (array) or 5 (object) , the function ____printzv_contents will execute code:
while $i > 0
    printf "  "
    set $i = $i - 1
end

$i will become 0.
So the loop in the print_cvs will be endless.

Test script:
---------------
aa.php

<?php
$a = 'vdf';
$b = array(1);
$c = array(2);
sleep(1);

# gdb php
(gdb) b sleep
(gdb) b sleep
(gdb) source .gdbinit
(gdb) r aa.php
(gdb) print_cvs

Expected result:
----------------
Compiled variables count: 3
0 = a
[0xf7bfd5d4] (refcount=1) string(3): "vdf"
1 = b
[0xf7bfd59c] (refcount=1) array(1): {
    0 => [0xf7bfd5b8] (refcount=1) long: 1
  }
2 = c
[0xf7bfe79c] (refcount=1) array(1): {
    0 => [0xf7bfe72c] (refcount=1) long: 2
  }


Actual result:
--------------
in the 5.6.24:

(gdb) print_cvs
Compiled variables count: 3
0 = a
[0xf7bfd5d4] (refcount=1) string(3): "vdf"
1 = b
[0xf7bfd59c] (refcount=1) array(1): {
    0 => [0xf7bfd5b8] (refcount=1) long: 1
  }0
1 = b
[0xf7bfd59c] (refcount=1) array(1): {
    0 => [0xf7bfd5b8] (refcount=1) long: 1
  }0
1 = b
[0xf7bfd59c] (refcount=1) array(1): {
    0 => [0xf7bfd5b8] (refcount=1) long: 1
  }0
1 = b
[0xf7bfd59c] (refcount=1) array(1): {
    0 => [0xf7bfd5b8] (refcount=1) long: 1
  }0
1 = b
[0xf7bfd59c] (refcount=1) array(1): {
    0 => [0xf7bfd5b8] (refcount=1) long: 1
  }0
1 = b
[0xf7bfd59c] (refcount=1) array(1): {
    0 => [0xf7bfd5b8] (refcount=1) long: 1
  }0
1 = b
[0xf7bfd59c] (refcount=1) array(1): {
    0 => [0xf7bfd5b8] (refcount=1) long: 1
  }0
1 = b
[0xf7bfd59c] (refcount=1) array(1): {
    0 => [0xf7bfd5b8] (refcount=1) long: 1
  }0
1 = b
[0xf7bfd59c] (refcount=1) array(1): {
    0 => [0xf7bfd5b8] (refcount=1) long: 1
  }0
1 = b
[0xf7bfd59c] (refcount=1) array(1): {
    0 => [0xf7bfd5b8] (refcount=1) long: 1
  }0
1 = b
[0xf7bfd59c] (refcount=1) array(1): {
    0 => [0xf7bfd5b8] (refcount=1) long: 1
  }0
1 = b
[0xf7bfd59c] (refcount=1) array(1): {
    0 => [0xf7bfd5b8] (refcount=1) long: 1
  }0
1 = b
[0xf7bfd59c] (refcount=1) array(1): {
---Type <return> to continue, or q <return> to quit---

in the old version (for example 5.4.34):

Compiled variables count: 3
0 = a
[0xf7bfd5d4] (refcount=1) string(3): "vdf"
1 = b
[0xf7bfd59c] (refcount=1) array(1): {
    0 => [0xf7bfd5b8] (refcount=1) long: 1
  }
1 = b
Structure has no component named operator!=.