<?php
/*
* 簡(jiǎn)單的函數(shù)
*/
function fontBold($con){
return "<B>$con</B>";
}
$str="簡(jiǎn)單的函數(shù)測(cè)試！";
echo "普通文本：$str<br>";
echo "加粗文本:".fontBold($str)."";
/*
* 帶可選參數(shù)的函數(shù)
*/
function fontColor($con,$color="bule"){
return "<font color=\"$color\">$con</font>";
}
$str="顏色測(cè)試";
echo $str;
echo fontColor($str."這是不帶顏色參數(shù)的（默認(rèn)為藍(lán)色）！");
echo fontColor($str,"red"."這是帶顏色參數(shù)的(默認(rèn)為紅色！)");
/*
* 遞歸函數(shù)
*/
function chckint($Num){
if($Num>1){
return chckint($Num-1);
}else if($Num<0){
return chckint(($Num*-1)-1);
}else{
if($Num>0 && $Num<1){
return false;
}else if($Num){
return true;
}
}
}
$Num=3;
if(chckint($Num)){
echo $Num."是整數(shù)！";
}else{
echo $Num."不是整數(shù)";
}
/*
*動(dòng)態(tài)調(diào)用函數(shù)
*/
function write($con){
echo "$con";
}
function writeBold($con){
echo "<b>$con</b>";
}
$myFupnction="write";
$myFupnction("這是動(dòng)態(tài)調(diào)用函數(shù)不加粗的例子！");
$myFupnction="writeBold";
$myFupnction("這是動(dòng)態(tài)調(diào)用加粗的例子！")
?>