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@ 2013-08-26T12:34:14Z

<?php                                                                                                                                                                                                   
$file = '/tmp/file.txt';                                                                                                                                                                            
file_put_contents($file, '<?php return 1;');                                                                                                                                                            
$var = include $file;                                                                                                                                                                                   
file_put_contents($file, '<?php return 2;');                                                                                                                                                            
$var = include $file;                                                                                                                                                                                   
var_dump($var);

var_dump: documentation ( source)
file_put_contents: documentation ( source)

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40.17 ms | 402 KiB | 5 Q