View source for PHP 4.4.x heap corruption/debug

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== Gentoo GNU/Linx ppc32 ==
=== Test 1 ===
<pre>
<?php
        class C { var $m1, $m2, $m3, $m4, $m5, $m6; }
        ini_set( 'memory_limit', -1 );
        $a = array();
        for ( $i=0; $i<100000; $i++) $a[] = new C;
?>
</pre>
==== Output ====
<pre>
23% avar@Rancorwe /tmp/php/php4-STABLE-200601070135 $ sapi/cli/php -n /tmp/tst1.php 

[Sat Jan  7 02:52:39 2006]  Script:  '/tmp/tst1.php'
---------------------------------------
/tmp/php/php4-STABLE-200601070135/Zend/zend_execute.h(44) : Block 0x102599B0 status:
Beginning:      Overrun (magic=0x11E7DA58, expected=0x7312F8DC)
      End:      Unknown
---------------------------------------
[Sat Jan  7 02:52:39 2006]  Script:  '/tmp/tst1.php'
---------------------------------------
/tmp/php/php4-STABLE-200601070135/Zend/zend_execute.h(44) : Block 0x10259970 status:
Beginning:      Overrun (magic=0x102599A8, expected=0x7312F8DC)
      End:      Unknown
---------------------------------------
[Sat Jan  7 02:52:39 2006]  Script:  '/tmp/tst1.php'
---------------------------------------
/tmp/php/php4-STABLE-200601070135/Zend/zend_execute.h(44) : Block 0x1025FC80 status:
Beginning:      Overrun (magic=0x10259968, expected=0x7312F8DC)
      End:      Unknown
---------------------------------------
[Sat Jan  7 02:52:39 2006]  Script:  '/tmp/tst1.php'
---------------------------------------
/tmp/php/php4-STABLE-200601070135/Zend/zend_execute.h(44) : Block 0x1025FD18 status:
Beginning:      Overrun (magic=0x1025FC78, expected=0x7312F8DC)
      End:      Unknown
---------------------------------------
[Sat Jan  7 02:52:39 2006]  Script:  '/tmp/tst1.php'
---------------------------------------
/tmp/php/php4-STABLE-200601070135/Zend/zend_execute.h(44) : Block 0x1025FDB0 status:
Beginning:      Overrun (magic=0x1025FD10, expected=0x7312F8DC)
      End:      Unknown
---------------------------------------
[Sat Jan  7 02:52:39 2006]  Script:  '/tmp/tst1.php'
---------------------------------------
/tmp/php/php4-STABLE-200601070135/Zend/zend_execute.h(44) : Block 0x1025FE48 status:
Beginning:      Overrun (magic=0x1025FDA8, expected=0x7312F8DC)
      End:      Unknown
---------------------------------------
</pre>

=== Test 2 ===
<pre>
<?php
        $t = array( 'm1' => null, 'm2' => null, 'm3' => null, 'm5' => null, 'm6' => null );
        ini_set( 'memory_limit', -1 );
        $a = array();
        for ( $i=0; $i<100000; $i++) $a[] = $t;
?>
</pre>

==== Output ====
<pre>
23% avar@Rancorwe /tmp/php/php4-STABLE-200601070135 $ sapi/cli/php -n /tmp/tst2.php 
[Sat Jan  7 02:53:25 2006]  Script:  '/tmp/tst2.php'
---------------------------------------
/tmp/php/php4-STABLE-200601070135/Zend/zend_execute.h(44) : Block 0x1025EF98 status:
Beginning:      Cached (allocated on /tmp/php/php4-STABLE-200601070135/Zend/zend_execute.c:512, 16 bytes)
      End:      OK
---------------------------------------
</pre>