This speedup is due to the fact that the array is a fixed size, not a variable-sized one like the default PHP one is, and that non-numeric indexes are not allowed.

造成这种速度优势的原因是数组是固定大小的，而默认的 PHP 数组是可变大小的，并且不允许非数值型索引。

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A parameter self-learning algorithm is presented after defining data structure and variable array to improve the prototype's adaptability to different size of workpieces.

在定义了数据结构和变量数组的基础上，给出了参数自学习过程算法，改善了模型样机对不同规格样本工件的适应性。

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You can initialize a pointer by using an array, a string, a fixed-size buffer, or the address of a variable.

可通过使用数组、字符串、大小固定的缓冲区或变量地址初始化指针。

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