Android programmers learn PHP development (15)-dowhile-for-goto-function-PhpStorm

This article describes the details of Android programmers learning PHP development (15)-dowhile-for-goto-function-PhpStorm. Friends in need can refer to it

<?php
    /**
     * while和do...while的区别
     */
    echo "----------while和do...while的区别----------<br>";
    while (false){
        echo "1<br>";
    }

    do{
        echo "2<br>";
    }while(false);

    /*以上只输出2*/

    /**
     * for的复杂用法
     */
    echo "----------for的复杂用法----------<br>";
    for ($i=0,$j=10; $i<10 || $j>0 ; $i++,$j--){
        echo "i = {$i} , j = {$j} <br>";
    }

    echo "----------for的复杂用法2----------<br>";
    for ($i=1;$i<=9;$i++){
        for ($j=1;$j<=$i;$j++){
            echo "$j x $i = ".($j*$i)."  ";
        }
        echo "<br>";
    }

    /**
     * goto跳转（方便，但是被唾弃的一个命令，不推荐使用）
     */
    echo "----------goto跳转----------<br>";
    echo "1<br>";
    goto biaoji;
    echo "2<br>";
    echo "3<br>";
    biaoji:
    echo "4<br>";

    /**
     * function函数
     * function_exists判断函数是否存在
     */
    echo "----------function函数----------<br>";
    //$jieguo = 0;
    jiafa(1,2);
    if (function_exists("jiafa")){
        echo "存在<br>";
    }else{
        echo "不存在<br>";
    }
    echo $jieguo; // 因为jieguo是局部变量，所以会报错；

    exit( "----------exit()结束脚本----------<br>");
    echo "exit以后的内容不打印";
    /**
     * 下面两个命令，与while和for相关：
     * break退出循环
     * continue直接进入下一次循环
     */

    /**
     * function函数
     */
    function jiafa($yuansu1,$yuansu2){
        echo $yuansu1+$yuansu2;
        $jieguo = $yuansu1+$yuansu2;
        echo "<br>";
    }

The above is the content of Android programmers learning PHP development (15)-dowhile-for-goto-function-PhpStorm. For more related content, please pay attention to the PHP Chinese website!

Related recommendations:
PhpStorm 10.0.1 Chinese cracked version download