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<?php $a = array(1 => 'one', 2 => 'two', 3 => 'three'); print_r($a); unset($a[2]); /* 该数组将被定义为 $a = array(1 => 'one', 3 => 'three'); 而不是 $a = array(1 => 'one', 2 =>'three'); */ print_r($a); $b = array_values($a); // 现在 $b 是 array(0 => 'one', 1 =>'three') print_r($b); ?>
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