How to convert a php string into a two-dimensional character array

In PHP, there are many ways we can convert a string into a two-dimensional array of characters. The following are two of the methods:

Method 1: Use the str_split function

The str_split function in PHP can split a string into a character array. We can use this function to convert a string into a two-dimensional character array.

Sample code:

Run result:

Array ( [0] => Array ( [0] => h ) [1] => Array ( [0] => e ) [2] => Array ( [0] => l ) [3] => Array ( [0] => l ) [4] => Array ( [0] => o ) [5] => Array ( [0] => ) [6] => Array ( [0] => w ) [7] => Array ( [0] => o ) [8] => Array ( [0] => r ) [9] => Array ( [0] => l ) [10] => Array ( [0] => d ) )

Method 2: Use the mb_str_split function

In addition to the str_split function, PHP also provides the mb_str_split function, Converts a multibyte string to a character array.

Sample code:

Running result:

Array ( [0] => Array ( [0] => 你 ) [1] => Array ( [0] => 好 ) [2] => Array ( [0] => ， ) [3] => Array ( [0] => 世 ) [4] => Array ( [0] => 界 ) [5] => Array ( [0] => ！ ) )

Finally, no matter which method you use, don’t forget to use a loop to convert the character array into a two-dimensional character array . In this way, we can easily process and operate strings.

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