Beginners learning PHP development should master a few essential pieces of code (1)_PHP Tutorial

Classic loop example

＜HTML＞＜HEAD＞＜TITLE＞经典循环例子＜/TITLE＞＜/HEAD＞＜BODY＞＜?    for($counter = 1; $counter ＜= 6; $counter++)        //循环6次    {        print("＜B＞counter is $counter＜/B＞＜BR＞n");    //打印6次    }    ?＞＜/BODY＞＜/HTML＞

Advanced application of for

＜HTML＞＜HEAD＞＜TITLE＞for的高级运用＜/TITLE＞＜/HEAD＞＜BODY＞＜?    /*     ** 打印必要的说明文字     */    print("＜B＞距离星期一还有几天？＜/B＞n");    print("＜OL＞n");    for($currentDate = date("U");          //定义$currentDate时间格式        date("l", $currentDate) != "Monday"; //判断是不是当前系统时间是Monday        $currentDate += (60 * 60 * 24))     //当前时间加上1天    {        /*         ** 打印时间名称         */        print("＜LI＞" . date("l", $currentDate) . "n");    }    print("＜/OL＞n");?＞＜/BODY＞＜/HTML＞

Simple calling of function :

＜HTML＞＜HEAD＞＜TITLE＞简单的函数＜/TITLE＞＜/HEAD＞＜BODY＞＜FONT SIZE=5＞＜?    function printBold($inputText)       //定义function printBold（）    {        print("＜B＞" . $inputText . "＜/B＞");   ////打印$inputText    }    print("这行没有加重！＜BR＞n");         //直接打印字符串    printBold("这行加重了！！！");         //调用function printBold()函数    print("＜BR＞n");    print("这行没有加重！＜BR＞n");         //直接打印字符串?＞＜/FONT＞＜/BODY＞＜/HTML＞

Function with return value

＜HTML＞＜HEAD＞＜TITLE＞有返回值的函数＜/TITLE＞＜/HEAD＞＜BODY＞＜FONT SIZE=5＞＜?    function makeBold($inputText)    //定义function makeBold()函数    {        $boldedText = "＜B＞";        $boldedText .= $inputText;        $boldedText .= "＜/B＞";        return($boldedText);        //返回变量$boldedText    }    print("这行没有加重！！！＜BR＞n");    //直接打印字符串        print(makeBold("这行被加重了！！！") . "＜BR＞n");

//调用function makeBold()函数    print("这行没有加重！！！＜BR＞n");    //直接打印字符串?＞＜/SIZE＞＜/BODY＞＜/HTML＞

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http://www.bkjia.com/PHPjc/446701.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/446701.htmlTechArticleClassic loop example＜HTML＞＜HEAD＞＜TITLE＞Classic loop example＜/TITLE＞＜/HEAD＞＜ BODY＞＜? for($counter = 1; $counter ＜= 6; $counter++) //Loop 6 times { print("＜B＞...