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$a = array(0=>'',1=>arrray(0=>1,1=>2),2=>'',3=>arrray(0=> ;1,1=>2));
How can I turn this two-dimensional array into the following one-dimensional array:
$a = array(
0= >'',
1=>'1,2',
2=>'',
3=>'1,2',
};
It has been verified that it works. I have the same idea, but I am stuck. Thank you for the guidance.
First of all, there is a problem with your array. What is arrray? Although I don’t know why I wrote it like this, it’s okay if I just force it out
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
It has been verified that it works. I have the same idea, but I am stuck. Thank you for the guidance.
First of all, there is a problem with your array. What is arrray? Although I don’t know why I wrote it like this, it’s okay if I just force it out