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<?php class Test{ const AB♥ = "alphabet"; } $rc = new ReflectionClass("Test"); $bad = "♥"; $key = array_keys( $rc->getConstants())[0]; $substr = substr( $key, -1,1 ); //$substr = mb_substr( $key, -1,1 ); // 5.6 if ( $substr === $bad ) { trigger_error( "'$bad' in '$key'" ); } // Notice: '♥' in 'AB♥' ...
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