trim
trim — Strip whitespace (or other characters) from the beginning and end of a string.Description
trim( string $string, string $characters = " \n\r\t\v\0" ): stringThis function returns a string with whitespace stripped from the beginning and end of string. Without the second parameter, trim() will strip these characters:
• " " (ASCII 32 (0x20)), an ordinary space.
• "\t" (ASCII 9 (0x09)), a tab.
• "\n" (ASCII 10 (0x0A)), a new line (line feed).
• "\r" (ASCII 13 (0x0D)), a carriage return.
• "\0" (ASCII 0 (0x00)), the NUL-byte.
• "\v" (ASCII 11 (0x0B)), a vertical tab.
Parameters
string
The string that will be trimmed.
characters
Optionally, the stripped characters can also be specified using the characters parameter. Simply list all characters that you want to be stripped. With .. you can specify a range of characters.
Return Values
The trimmed string.More information about trim on official PHP documentation site
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