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function f2() {
$GLOBALS["v3"] = &$GLOBALS["v1"];
echo 'f2函数里:'."<br/>v1:".$v1."<br/>v3:".$v3;
}
$v1 = 5;
$v2 = $v3 = 0;
f2();
echo "<br/><br/>f2函数之后:<br/>";
echo "v1: ".$v1."<br/>";
echo "v3: ".$v3."<br/>";
<?php
function f2() {
GLOBAL $v3;
GLOBAL $v1;
$v1=&$v3;
echo 'f2函数里:'."<br/>v1:".$v1."<br/>v3:".$v3;
}
$v1 = 5;
$v2 = $v3 = 0;
f2();
echo "<br/><br/>f2函数之后:<br/>";
echo "v1: ".$v1."<br/>";
echo "v3: ".$v3."<br/>";
?>
function f2() {
$GLOBALS["v3"] = &$GLOBALS["v1"];
$v1 = $GLOBALS["v1"];
$v3 = $GLOBALS["v3"];
echo 'f2函数里:'."<br/>v1:".$v1."<br/>v3:".$v3;
}