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<?php
//b.phpÎļþ
$file = 'testdir/file.txt';
for ($i=0;$i<10;$i++){
    $fp = fopen($file,'a+');
    fputs($fp, $i.'\r\n');
    fclose($fp);
    sleep(1);
}
?>
<?php
//p.php
echo 'start curl<br>';
$out = popen("/usr/local/php5/bin/php /var/htdocs/b.php &", "r");
pclose($out); 
echo 'end curl<br>';
?>
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$arr1 = array('a'=>1,'b'=>2,'c'=>3,'d'=>4);
$array = array_flip($arr1);
showArr($array);
/*
Array
(
[1] => a
[2] => b
[3] => c
[4] => d
)
*/
array_key_exists
 
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