} } }

    PHP 函数

    添加时间:2013-7-1 点击量:

    字符串函数:


      




    1     ¥name = fakeface;
    
    2 ¥myname =substr¥name,0,3);//输出前面三个字符 fak
    3 print ¥myname;
    4 ¥name = strtoupper¥name); //小写
    5 print ¥name;
    6 ¥name = strtolower¥name);、、大写
    7 print ¥name;
    8 ¥position = strpos¥name,c);//输出c的地位
    9 print ¥position;


    View Code


    数学函数:


      



    1     ¥num = 123.123456;
    
    2 print round¥num);//输出一个整数123
    3 print round¥num,3);//输出数字并保存三位小数123.123
    4 rand(1,10);//在1,10随机生成一个数字



    数组函数:


      



     1     ¥fav_bands = array();
    
    2 array_push¥fav_bands, Maroon 5);//给数组添加元素
    3 array_push¥fav_bands, Bruno Mars);
    4 array_push¥fav_bands, Nickelback);
    5 array_push¥fav_bands, Katy Perry);
    6 array_push¥fav_bands, Macklemore);
    7 print count¥fav_bands); 查看数组有几许元素
    8
    9
    10 ¥names = array(david,alana,violet,rory);
    11 sort¥names);// array(alana,david,rory,violet)
    12 print join(, , ¥names);// prints alana, david, rory, violet
    13 rsort¥names); // array(violet,rory,david,alana)



      

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