解析数组非数字键名引号的必要性(2)

$string = "variable value is {$array['key']}"

我很赞同:”be lazy”, 但是, lazy也是应该有原则的.
最后, 好的代码,不应该通过关闭error_reporting来伪装.
附注, FETCH_CONSTANT OPCODE中找不到常量的相关逻辑:

复制代码 代码如下:

....
if (!zend_get_constant(opline->op2.u.constant.value.str.val,
     opline->op2.u.constant.value.str.len, &EX_T(opline->result.u.var).tmp_var TSRMLS_CC)) {
       zend_error(E_NOTICE, "Use of undefined constant %s - assumed '%s'",
                opline->op2.u.constant.value.str.val,
                opline->op2.u.constant.value.str.val);
       EX_T(opline->result.u.var).tmp_var = opline->op2.u.constant;//获取"常量"名字符串
       zval_copy_ctor(&EX_T(opline->result.u.var).tmp_var);//分配空间,生成字符串
}
....

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