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@@ -45,7 +45,8 @@ $a = "new string";

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<literal>new string</literal>. The "is_ref" bit is by default set to &false; because no

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user-land reference has been created. The "refcount" is set to <literal>1</literal> as

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there is only one symbol that makes use of this variable container. Note

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-

that if "refcount" is <literal>1</literal>, "is_ref" is always &false;. If you have <link

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+

that references (i.e. "is_ref" is &true;) with "refcount" <literal>1</literal>, are

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+

treated as if they are not references (i.e. as "is_ref" was &false;). If you have <link

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xlink:href="&url.xdebug;">Xdebug</link> installed, you can display this

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information by calling <function>xdebug_debug_zval</function>.

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</para>

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@@ -404,7 +405,7 @@ a: (refcount=2, is_ref=1)=array (

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When the garbage collector is turned on, the cycle-finding algorithm as

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described above is executed whenever the root buffer runs full. The root

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buffer has a fixed size of 10,000 possible roots (although you can alter

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this by changing the <literal>GC_ROOT_BUFFER_MAX_ENTRIES</literal> constant in

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+

this by changing the <constant>GC_THRESHOLD_DEFAULT</constant> constant in

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<literal>Zend/zend_gc.c</literal> in the PHP source code, and re-compiling

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PHP). When the garbage collector is turned off, the cycle-finding

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algorithm will never run. However, possible roots will always be recorded

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@@ -490,6 +491,7 @@ a: (refcount=2, is_ref=1)=array (

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class Foo

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{

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public $var = '3.14159265359';

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+

public $self;

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}

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$baseMemory = memory_get_usage();

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@@ -552,6 +554,7 @@ for ( $i = 0; $i <= 100000; $i++ )

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class Foo

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{

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public $var = '3.14159265359';

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+

public $self;

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}

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for ( $i = 0; $i <= 1000000; $i++ )

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