/PHP/Remove last character from string php

Remove last character from string php

echo substr($string, 0, -3);

2

echo substr($string, 0, -3);

2

$arrStr = "PHP=_=MySQL=_=JAVASCRIPT=_=HTML=_=CSS=_=
$newString = rtrim($arrStr, "=_=");

2

echo substr($string, 0, -2);

0

$str = removeLast3char($str);
function removeLast3char($string){
    return trim(substr($string, 0, -3));
}

0

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