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<?php
$a_1 = "a_1";
$a_2 = "a_2";
$a_3 = "a_3";
$a = "a";
echo "<pre>\n";
for ($i=0;$i<4;$i++) {
echo ${"a_".$i}."\n";
}
echo "</pre>\n";
?>
PHP循环输出变量
$a_1 = "a_1";
$a_2 = "a_2";
$a_3 = "a_3";
$a = "a";
echo "<pre>\n";
for ($i=0;$i<4;$i++) {
echo ${"a_".$i}."\n";
}
echo "</pre>\n";
?>