Php array conversion, the number prefix is 0, how to deal with it, please give some advice, but don't point fingers, hehe.

You can use the php built-in function str_pad () to fill the string with the new length.

Str_pad (string, length, padding string, padding type)

parameter

String // required. Specifies the string to fill.

Length//required. Specify a new string length. If the value is less than the original length of the string, nothing is done.

Pad_string // optional. Specifies the string used for padding. The default value is empty.

Pad_type // optional. Specifies which side of the string to fill.

Please refer to: /article/8395.html for detailed usage.