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Types of loops 循环类型。

$files = array ('index.php', 'reports.php', 'welcome');

echo "This is how foreach works
";

foreach($files as $file){

echo $file."
";

};
echo "


";
echo "This is how for works
";
for($index = 0; $index < count($files); $index  ){

//echo "Index = ".$index."
";
echo "File = ".$files[$index]."
";

} Play Angry Birds
echo "


";
echo "This is how while works
";

$index = 0;
while($index

//echo "Index = ".$index."";
echo "File = ".$files[$index]."
";
$index  ;

}
?>