php隨機顯示圖片代碼

php通過rand()函數產生隨機數，這個函數可以產生一個指定範圍的數字 這段代碼通過產生的隨機數，隨機播放圖片 srand( microtime() * 1000000 ); $num = rand( 1, 4 ); switch( $num ) { case 1: $image_file = "/home/images/alfa.jpg"; break; case 2: $image_file = "/home/images/ferrari.jpg"; break; case 3: $image_file = "/home/images/jaguar.jpg"; break; case 4: $image_file = "/home/images/porsche.jpg"; break; } echo "Random Image : "; ?> 複製代碼

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