案例:PHP案例     状态:不可编辑再运行    进入竖版
 运行结果 
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<?php
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$cars=array("Volvo","BMW","SAAB");
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$arrlength=count($cars);
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for($x=0;$x<$arrlength;$x++) {
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   echo $cars[$x];
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   echo "\n";
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}
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?>