How to convert numeric value to array in php

In programming, we often need to convert numbers into arrays, which is a very common operation. In PHP, we can convert numbers to arrays in many ways, two of the most common methods are described below.

The first method is to use the split() function to convert the number to a string, and then use the explode() function to convert the string to an array. The specific code is as follows:

$num = 12345;
$str = (string)$num;
$arr = explode('', $str);

In the above code, we first convert the number into a string, then use the explode() function to split the string according to each character, and finally get a string containing each Array of numbers.

The second method is to use the str_split() function to directly convert the number into an array. The specific code is as follows:

$num = 12345;
$arr = str_split((string)$num);

In the above code, we directly use the str_split() function to convert the number into an array. In fact, the principle is the same as using the explode() function, except that this function is specially used for Convert string to array.

In addition to the above two methods, we can also use some other functions to convert numbers into arrays, such as preg_split() function, mb_split() function, etc., but these functions are rarely used, and It is not very different from the two methods above, so I won’t go into details here.

To summarize, converting numbers into arrays is a very common operation in PHP. It can be implemented using a variety of different functions. The most commonly used ones are the split() function and str_split() function. Everyone You can choose different methods according to your needs.

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