<?php function add($num1,$num2){ return $num3=$num1+$num2; } ec...
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<meta charset="utf-8"><?php function number1($he) { return '5...
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1、数据库2、新增数据操作<?php //1.创建PDO对象，连接数据库 $pdo = new PDO('mysql:host=127.0.0.1;dbna...
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无法很方便的在函数内部引用变量，只能通过关键字来引用。在函数内部写很多代码语句时，会引发变量污染，需要消耗更多的内存尽量使用分支语句时，给变量初始化， 尽量分支语句都写在函数内。
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pdo方式 创建表 dml操作<?php header("Content-type: text/html; charset=utf-8"); ...
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<?php/** * Created by PhpStorm. * User: Administrator * Date: 2019-02-07 * Time: 9:23 */namespace...
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<?php $type = 'mysql'; $host = 'localhost'; $dbNa...
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<?php/** * Created by PhpStorm. * User: Administrator * Date: 2019-02-06 * Time: 11:45 */namespac...
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class Father{ public static $one = 'this i...
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<?php$dir = opendir('ceshi');while($row = readdir($dir)){if($row !='.'&&$...
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&n...
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<?php/** * Created by PhpStorm. * User: Administrator * Date: 2019-02-05 * Time: 8:40 */namespace...
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<!DOCTYPE html> <html> <head> <meta charset="utf-8"> ...
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<?php/** * Created by PhpStorm. * User: Administrator * Date: 2019-01-31 * Time: 10:18 */namespac...
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