PHP 学習ノートには配列とオブジェクトの例が表示されます

$a = array(1, 2, array("aa", "bb", "cc"));
$a をエコーし​​ます。 echo "

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";
print_r($a); echo "

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";
var_dump($a);  echo "

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";
var_export($a); echo "

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";
$b = var_export($a, true);
$b をエコーし​​ます。 echo "

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";
print_r($b); echo "

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";
var_dump($b);  echo "

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";
$c = array ( 0 => 1, 1 => 2, 2 => array ( 0 => 'aa', 1 => 'bb', 2 => 'cc', ), );
$c をエコー; echo "

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";
print_r($c); echo "

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";
var_dump($c);  echo "

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";
?>