Online PHP editor | refs for EYuU8

@ 2019-05-31T04:54:30Z

<?php

for( $errors_count = 1; $errors_count < 5; $errors_count++ ) {
    echo 'Current code:'.PHP_EOL;
    var_dump( 'unknown_upgrade_error_' . $errors_count + 1 );
    
    echo PHP_EOL.'Fixed code:'.PHP_EOL;
    var_dump( 'unknown_upgrade_error_' . ( $errors_count + 1 ) );
}