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Language	PHP
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<?php
$x=5;
$y=10;
 
function myTest() {
  $GLOBALS['y']=$GLOBALS['x']+$GLOBALS['y'];
} 
 
myTest();
echo $y; // 输出 15
?>
 
 
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XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

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Lines	10

Snippet Metadata
Owner	w3xue
Created	3 years ago
Modified	3 years ago
Visibility	Public