How Can I Efficiently Split a String into Lines Using PHP?

Splitting Strings with New Line Characters

For efficient string manipulation in programming, splitting a string based on specific characters is a common task. When dealing with multi-line text, it becomes necessary to divide the string into an array of lines.

To achieve this, we can utilize the preg_split() function, which takes two parameters: a regular expression and the string to be split. The regular expression defines the pattern to match against, and for new line characters, we specify the following pattern:

/\r\n|\n|\r/

This expression searches for line breaks (either a carriage return r, a newline n, or both rn) and uses it to split the string.

Here's an example:

$string = "My text1\nMy text2\nMy text3";
$array = preg_split("/\r\n|\n|\r/", $string);

print_r($array);

Output:

Array
(
    [0] => My text1
    [1] => My text2
    [2] => My text3
)

As you can see, the string has been successfully split into an array of lines, with each line occupying an index in the array.

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