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PHP count() 函数
tryphp_func_count2
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<!DOCTYPE html> <html> <body> <?php $cars=array ( "Volvo"=>array ( "XC60", "XC90" ), "BMW"=>array ( "X3", "X5" ), "Toyota"=>array ( "Highlander" ) ); echo "Normal count: " . count($cars)."<br>"; echo "Recursive count: " . count($cars,1); ?> </body> </html>