How to delete the last character in php: You can use the rtrim() function, such as [rtrim ($text, ",");]. The rtrim() function can remove blank characters or other characters at the end of a string.
Method 1:
rtrim removes the blank characters (or other characters) at the end of the string
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Description:
string rtrim ( string $str [, string $character_mask ] )
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This function deletes the blank characters at the end of str and returns.
Without the second parameter, rtrim() only removes the following characters:
##$str input string.
$ character_mask By specifying character_mask, you can specify the character list you want to delete. Simply list all the characters you want to remove. Using the .. format, a range can be specified.
Example:
$text = 'b,c,d,';
$trimmed = rtrim ( $text , "," );
var_dump ( $trimmed );
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Output
Method 2:
substr returns the substring of the string
string substr ( string $string , int $start [, int $length ] )
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$ string The string to be processed
$start The starting position
If start is a non-negative number, the returned string will start from the start position of string and start counting from 0. For example, in the string "abcdef", the character at position 0 is "a", the character at position 2 is "c", and so on.
If start is a negative number, the returned string will start from the start character forward from the end of string.
If the length of string is less than or equal to start, FALSE will be returned.
$length The length of the intercepted string If length is not provided, the returned substring will start from the start position until the end of the string.
Example:
$str = 'a,b,c,d,';
$rest = substr( $str,0,strlen($str)-1);
echo $rest;
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Output:
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