How to match whether a string is consistent / exists from an array

such as the question, I have tried it with my own ideas, but I can"t match

. 
$Str = "Players";

$CotentCate = "UserOS|UserIP|UserLang|UserLocation|Players|JavaVersion|MCVersion|ServerCore|ServerSystem";

$content = trim($Str);
        $CotentArr = explode("|", $CotentCate);
        for ($i = 0; $i < count($CotentArr); $iPP) {
            if ($CotentArr[$i] == "") {
                continue;  
            }
            if (strpos($content, trim($CotentArr[$i])) != false) {
                die("true");
            }
        }
        die("false");

destination returns true

actually return false

Php
Jun.08,2021 
$rr = substr_count($CotentCate,$Str);
echo $rr;

I think the method of Snow Prayer is very good
but for your code, why it doesn't match, I think the reason is here: 

if (strpos($content, trim($CotentArr[$i])) != false)
The sentence ! = should be replaced with ! =
because the strpos function is used to find the string, and if found, the position where the string appears is returned. When the value of CotentArr [$I] is Players , its position in $content is 0 , after = .

digression:
is not recommended in for (expression 1; expression 2; Expression 3) expression 2 in uses the count function, because the three expressions are executed in the following order:
expression 1-> expression 2-> expression 3-> expression 3-> expression 2. the count function you use calculates the number of elements in the array multiple times. Of course, PHP is very fast, and you can not care about

.

helpless ~ No one uses in_array () ?

Previous: How to design a cross-site shopping cart settlement system?

Next: About the link problem of POST request

css mysql arrays josn react html typescript webpack npm sass R objective-c .net sql-server jquery python-3.x angularjs django angular excel regex iphone ajax linux xml pandas vba spring database wordpress string wpf xcode windows bash postgresql oracle multithreading eclipse list firebase algorithm macos forms image scala visual-studio azure bootstrap spring-boot react-native python-2.7 docker performance function winforms matlab powershell apache dataframe api sqlite numpy rest shell selenium flutter dart maven loops qt swing android-studio csv express file class tensorflow sorting codeigniter perl
© 2021 CodesHelper
Advertising Contact us About us
Menu