How can i change the encoding of a php page?

Im trying to change the encoding of a php file (through another php page) to UTF-8 , i mean without editor .

i tried to use file_get_contents an开发者_高级运维d file_put_contents .

i used this code but it doesn't work !

$text = file_get_contents('testencoding.php');
$text = mb_convert_encoding($text, "UTF-8");
file_put_contents('testencoding.php',$text);

this code above is working only if there is a "arabic" characters in the page.

Thanks,

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You must specify from_encoding for the mb_convert_encoding function.

If from_encoding is not specified, it'll use the internal encoding.

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Try:

$text = file_get_contents('testencoding.php');
file_put_contents('testencoding.php',utf8_encode($text));

if it doesn't work, try:

$text = file_get_contents('testencoding.php');
file_put_contents('testencoding.php',utf8_decode($text));

PS: consider marking the answer as correct if it works, tks :)