Today, we need to remove the spaces at the beginning and end of the string when doing php. Baidu finds that php comes with this function trim, which is much more convenient.
Today, we need to remove the spaces at the beginning and end of the string when doing php. Baidu finds that php comes with this function trim, which is much more convenient.
Method 1: Use the built-in functions of php
/*
Trim removes spaces at both ends of a string,
Rtrim removes the right space of a string,
Ltrim removes the left space of a string.
*/
?>
Echo trim ("space ")."
";
Echo rtrim ("space ")."
";
Echo ltrim ("space ")."
";
?>
Method 2: replace with a regular expression to improve the function
Php removes spaces at the beginning and end of the string (including the full angle)
The Code is as follows:
$ Str = "www.www.www.jb51.net ";
$ Str = mb_ereg_replace ('^ (|) +', '', $ str );
$ Str = mb_ereg_replace ('(|) + $', '', $ str );
Echo mb_ereg_replace (''," \ n ", $ str );
?>
