What are some best practices for iterating through a string and selecting characters at regular intervals in PHP?

When iterating through a string and selecting characters at regular intervals in PHP, one common approach is to use a loop to iterate through the string and select characters based on a specified interval. This can be achieved by using a for loop with a step value equal to the desired interval. Within the loop, you can access individual characters in the string using the index. 

$string = "Hello, World!";
$interval = 2;

for ($i = 0; $i < strlen($string); $i += $interval) {
    echo $string[$i];
}

Keywords

PHP string iteration character selection regular intervals substr.

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