We design and build
websites that work

<?php
$xml = simplexml_load_file("books.xml") or die("Error: Cannot create object");
echo $xml->book[0]->title . "<br>";
echo $xml->book[1]->title;
?>

function exec_time( $phase = 'run', $round = 6 ){
    static $prev_time, $collect;
    if( 'start' === $phase ){
        $collect = $prev_time = 0;
    } elseif( 'clear' === $phase ){
        return $collect = $prev_time = 0;
    }
    
    list( $usec, $sec ) = explode( ' ', microtime() );
    $mctime = bcadd( $usec, $sec, 8 );
    if( $prev_time ){
        $exectime = $mctime - $prev_time; // bcsub( $mctime, $prev_time, 8 );
        $collect += $exectime; // bcadd( $collect, $exectime, 8 );
    }
    $prev_time = $mctime;
    if( 'pause' === $phase ){
        $prev_time = 0;
    } elseif( 'get' === $phase ){
        return round( $exectime, $round );
    } elseif( false !== strpos( 'getall end stop', $phase ) ){
        return round( $collect, $round );
    }
}