How to remove the last character from a php string?

In PHP, you can use the substr() function to remove the last character; the syntax is "substr(original string, length of string -1)", where you can use the strlen() function to calculate characters The length of the string.

#substr() function returns a portion of a string.

Note: If the start parameter is negative and length is less than or equal to start, length is 0. [Related recommendations: PHP Tutorial]

Syntax:

string substr(string string, int start, int [length]);

• Parameter 1: Original string;

• Parameter 2: starting position of cutting;

• Parameter 3: intercepted length;

php Method to remove the last character from a string:

substr($str,0,strlen($str)-1);

Intercept from the beginning to the penultimate character, thus removing the last character.

Example:

$str = "1,2,3,4,5,6,";
$newstr = substr($str,0,strlen($str)-1);
echo $newstr;

Output:

1,2,3,4,5,6

Expand knowledge:

rtrim() function from Whitespace characters or other predefined characters are removed starting from the end of the string. Same as chop() function.

Grammar

rtrim(string,charlist)

Usage example

$str = "1,2,3,4,5,6,";
$newstr = rtrim($str, ",");
echo $newstr;

Output:

1,2,3,4,5,6

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