<?php
function TdBackColor()
{
static $Colorstr;
if ($Colorstr==808080){
$Colorstr="c0c0c0";
}
else (
$Colorstr="808080";
)
return($Colorstr);
}
echo "<table border=\"1\">\n";
for ($i=0; $i<10; $i++) {
$Colorstr=TdBackColor();
echo "<tr><td bgcolor=".$Colorstr.">这是第".$i."行</td></tr>\n";
}
echo "</table>";
?>
function TdBackColor()
{
static $Colorstr;
if ($Colorstr==808080){
$Colorstr="c0c0c0";
}
else (
$Colorstr="808080";
)
return($Colorstr);
}
echo "<table border=\"1\">\n";
for ($i=0; $i<10; $i++) {
$Colorstr=TdBackColor();
echo "<tr><td bgcolor=".$Colorstr.">这是第".$i."行</td></tr>\n";
}
echo "</table>";
?>
on line 20
$a = "Hello";
$$a = "world!";
echo "<pre>";
echo "$a , $Hello\n";
echo "$a , ${$a}\n";
echo "$a , $$a";
echo "</pre>"; ?>
学习PHP中..希望各位老大给与指导.