ÎļþÃû£ºfunction.php
<?php
//×Ô¶¨Ò庯Êý
echo " <b>×Ô¶¨Ò庯Êý£º </b> <br>";
function square($A)
{
return $A*$A;
}
$A=4;
echo $A."µÄƽ·½ÊÇ£º".square($A)." <br>";
echo " <br>";
//±äÁ¿µÄ×÷Ó÷¶Î§--¾Ö²¿±äÁ¿¡¢È«¾Ö±äÁ¿¡¢¾²Ì¬±äÁ¿
echo " <b>±äÁ¿µÄ×÷Ó÷¶Î§--¾Ö²¿±äÁ¿¡¢È«¾Ö±äÁ¿¡¢¾²Ì¬±äÁ¿£º </b> <br>";
$B=10;
$C=20;
function var_range(){
static $D=30;
if($D==30){
$B=15;
echo "¾Ö²¿±äÁ¿\$BµÄÖµÊÇ£º$B <br> <br>";
echo "ʹÓÃ\$GLOBALSÈ«¾Ö±äÁ¿Êý×éÏÔʾȫ¾Ö±äÁ¿\$CµÄÖµ£º".$GLOBALS["C"]." <br> <br>";
global $C;
$C+=5;
}
echo "¾²Ì¬±äÁ¿\$DµÄÖµÊÇ£º$D <br> <br>";
$D+=2;
}
for($i=1;$i <=3;$i++)
var_range();
echo "È«¾Ö±äÁ¿\$BµÄÖµÊÇ£º$B <br> <br>";
echo "È«¾Ö±äÁ¿\$CµÄÖµÊÇ£º$C <br>";
echo " <br>";
//º¯Êý²ÎÊýµÄ´«µÝ
echo " <b>º¯Êý²ÎÊýµÄ´«µÝ£º </b> <br>";
echo "a.°´Öµ´«µÝ²ÎÊýÓë°´µØÖ·´«µÝ²ÎÊý£º <br>";
$E=50;
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