remove comma from string php code example

Example 1: php remove null bytes from string

$text = str_replace("\0", "", $text);

Example 2: php remove last character from string

$hell = substr('hello', 0, -1);

Example 3: remove comma in numeric in php

$var = 18,542.00;
$var = intval(preg_replace('/[^\d.]/', '', $var));
result :- 18542;
or if you need float
$var = floatval(preg_replace('/[^\d.]/', '', $var));
result :- 18542.00;

Example 4: remove string after comma in php

preg_replace('/^([^,]*).*$/', '$1', $print);
substr($string, 0, strrpos($string.",", ","));