【php网站开发p63-p70】
php基础学习入门代码演示！宗波尘客(www.zbck123.com)宗九尘博客
php基础学习入门代码演示！宗波尘客(www.zbck123.com)宗九尘博客
演示图：
php基础学习入门代码演示！宗波尘客(www.zbck123.com)宗九尘博客
php基础学习入门代码演示！宗波尘客(www.zbck123.com)宗九尘博客
演示代码：
<!DOCTYPE html>
<!--
To change this license header, choose License Headers in Project Properties.
To change this template file, choose Tools | Templates
and open the template in the editor.
-->
<html>
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
<?php
function custom_func($num){
return "$num*$num=".$num*$num."<br>";
}
echo custom_func(10);
echo custom_func(12.5);
?>
<hr>
<?php
function fun_sum($a,$b){
$a=$a+5;
return $a+$b;
}
$x=10;
$y=20;
echo fun_sum($x,$y)."<br>";
echo $x;
?>
<hr>
<?php
function squre($num){
return $num*$num;
}
echo squre(4);
echo "<br>";
echo "<br>";
//
header("Content-Type:text/html;charset=utf-8");
function come(){
echo"我来了.<br>";
}
function go($name="Jack"){
echo $name."走了.<br>";
}
function back($string){
echo $string."又回来了.<br>";
}
$func='come';
$func();
$func='go';
$func('Tom');
$func='back';
$func('Lily');
echo "<br>";
echo "<br>";
//
function &test(){
static $b=0;
$b=$b+1;
echo $b."<br>";
return $b;
}
$a=test();
$a=5;
$a=test();
$a=&test();
$a=5;
$a=test();
echo "<br>";
echo "<br>";
//
$num=1234;
$math=&$num;
echo"\$math is: ".$math."<br>";
unset($math);
echo"\$math is:".$num;
echo "<br>";
echo "<br>";
//
$a="Hollo";
echo gettype($a)."<br>";
$b=array(1,2,5);
echo gettype($b)."<br>";
echo intval(4,5)."<br>";
var_dump($a);
echo "<br>";
var_dump($a,$b);
echo "<br>";
echo "<br>";
$y=20;
echo fun_sum($x,$y)."<br>";
echo $x;
?>
<hr>
<?php
function my_fun($a=1){
echo $a;
return;
$a++;
echo $a;
}
my_fun();
?>
<hr>
<?php
echo(floor(0.60));
echo(floor(0.40));
echo(floor(5));
echo(floor(5.1));
echo(floor(-5.1));
echo(floor(-5.9));
?>
<hr>
<?php
echo rand();
echo rand();
echo rand(10,100);
?>
<hr>
<?php
$pizza = "piece1 piece2 piece3 piece4 piece5 piece6";
$pieces=explode(" ",$pizza);
echo $pieces[0];
echo $pieces[1];
?>
</body>
</html>php基础学习入门代码演示！宗波尘客(www.zbck123.com)宗九尘博客
php基础学习入门代码演示！宗波尘客(www.zbck123.com)宗九尘博客
