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为锟斤拷锟斤拷 PHP 锟斤拷锟斤拷锟斤拷使锟矫憋拷锟斤拷锟斤拷锟酵憋拷锟斤拷要学锟斤拷 PHP 锟斤拷使锟矫的伙拷锟斤拷锟斤拷锟斤拷牟锟斤拷臁ｏ拷锟斤拷龋锟絇HP 锟斤拷一锟脚讹拷态锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟皆★拷锟斤拷危锟絇HP 锟斤拷写锟斤拷锟斤拷锟斤拷锟绞癸拷锟斤拷诖娲︼拷锟斤拷锟斤拷锟矫硷拷锟斤拷锟侥革拷锟斤拷锟斤拷锟斤拷锟斤拷锟�锟斤拷锟矫硷拷锟斤拷锟斤拷锟斤拷知识 锟铰斤拷锟皆伙拷锟斤拷锟斤拷使锟矫硷拷锟斤拷锟斤拷锟斤拷锟矫碉拷细锟节★拷

PHP 锟斤拷锟斤拷锟斤拷通锟斤拷锟斤拷说锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷桑锟斤拷锟角╋拷锟斤拷锟斤拷纾拷锟斤拷锟斤拷欠锟斤拷疟锟斤拷械锟揭伙拷锟斤拷锟侥匡拷锟斤拷锟绞碉拷时锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷诖锟斤拷植锟侥撅拷锟襟部凤拷锟斤拷锟斤拷锟叫讹拷锟斤拷锟斤拷员锟斤拷锟斤拷锟斤拷锟斤拷锟�

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟节达拷锟斤拷锟叫筹拷为 zval锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟借处锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷荨锟� 锟斤拷锟斤拷实锟斤拷值锟斤拷锟斤拷前锟斤拷锟酵★拷统锟斤拷指锟斤拷锟斤拷锟斤拷锟斤拷谋锟角╋拷锟斤拷锟斤拷锟斤拷锟斤拷锟街甘撅拷锟叫╋拷锟角╋拷锟斤拷锟斤拷没锟斤拷歉锟斤拷锟斤拷谋锟街撅拷锟� 锟斤拷 PHP 5.3 锟叫ｏ拷锟叫关结构锟斤拷锟斤拷 Zend/zend.h 锟斤拷锟揭碉拷锟斤拷锟斤拷锟斤拷锟节ｏ拷

typedef struct _zval_struct zval;

typedef union _zvalue_value {
    long lval;                 /* long value */
    double dval;               /* double value */
    struct {                   /* string type */
        char *val;
        int len;
    } str;
    HashTable *ht;             /* hash table value */
    zend_object_value obj;
} zvalue_value;
 
struct _zval_struct {
    /* Variable information */
    zvalue_value value;        /* value */
    zend_uint refcount__gc;
    zend_uchar type;           /* active type */
    zend_uchar is_ref__gc;
};

锟斤拷 zvalue_value 锟叫ｏ拷通锟斤拷锟斤拷锟狡猴拷注锟酵匡拷锟斤拷锟斤拷锟斤拷业锟斤拷侄锟斤拷锟绞癸拷玫牟锟酵拷锟斤拷偷锟斤拷诓锟斤拷锟斤拷锟斤拷锟绞�——锟斤拷锟斤拷锟角碉拷锟斤拷知锟斤拷 PHP 锟斤拷锟斤拷实锟斤拷锟斤拷锟角癸拷希锟斤拷时锟斤拷锟斤拷锟角ｏ拷锟斤拷锟斤拷也锟斤拷漏锟剿硷拷锟斤拷 PHP 锟斤拷锟酵ｏ拷NULL, boolean 锟斤拷 resources锟斤拷NULL 锟斤拷锟斤拷要值锟斤拷NULL 锟斤拷锟角达拷锟斤拷锟酵碉拷值锟斤拷锟斤拷 boolean 锟斤拷 resource 锟斤拷值锟斤拷说锟斤拷PHP 也使锟斤拷值锟街段★拷锟斤拷锟斤拷 boolean 值锟斤拷为 false 时锟斤拷锟� 0锟斤拷为 true 时锟斤拷锟� 1锟斤拷resource 锟斤拷锟酵的憋拷锟斤拷锟斤拷诺锟斤拷锟斤拷锟皆达拷锟� id锟斤拷

锟斤拷锟节ｏ拷锟叫革拷锟斤拷锟斤拷息锟斤拷锟姐不锟斤拷要知锟斤拷锟斤拷些细锟节ｏ拷锟斤拷为锟斤拷 PHP 锟斤拷锟斤拷锟斤拷使锟矫宏；锟斤拷锟斤拷息锟斤拷锟叫很讹拷辏� 锟斤拷直锟接达拷取 zval 锟侥宏，锟斤拷锟叫撅拷锟斤拷锟斤拷指锟斤拷 zval 锟斤拷指锟诫，锟斤拷锟斤拷锟斤拷指锟斤拷 zval 锟斤拷指锟斤拷锟街革拷耄拷锟斤拷锟斤拷锟疥都锟斤拷锟斤拷锟斤拷锟斤拷些指锟斤拷慕菥锟斤拷锟斤拷锟叫╋拷锟街诧拷锟斤拷 Zend/zend.h, Zend/zend_operators.h 锟斤拷 Zend/zend_API.h 之锟叫★拷