Question

How to remove newlines from a string PHP

Answer 1

function removeNewlines(string $s): string {
    return str_replace(["\n", "\r"], "", $s);
}

$s = "c# \n  c c++  \n java python\ngo\n";

$s = removeNewlines($s);

echo $s, PHP_EOL;



/*
run:

c#   c c++   java pythongo

*/

 

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Answer 2

function removeNewlines(string $s): string {
    // Replace any whitespace run (spaces, tabs, newlines, CR, LF) with a single space
    $s = preg_replace('/\s+/', ' ', $s);
    
    return trim($s);
}

$s = "c# \n  c c++  \n java python\ngo\n";

$s = removeNewlines($s); 

echo $s, PHP_EOL; // result without extra spaces



/*
run:

c# c c++ java python go

*/

 

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