a filter function

Define an array

contains all illegal strings

Write a function

return false when the input string contains illegal strings

function checkForbidPoi($from_name, $to_name, $forbidPoi){
​ $isSend = true;
foreach ($forbidPoi as $word) {
if (strpos($from_name, $word) === false && strpos($to_name, $word) === false) {


} else {
$ isSend = false;
                                                             break;
The above introduces a filter function, including various aspects. I hope it will be helpful to friends who are interested in PHP tutorials.