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php ajax debug method make log in a text file

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echo "<pre>";
print_r($data);
echo "</pre>";
$a=ob_get_contents();
//DAL::remove("insert into mytest(vvv) values('$a')");
$filename = "file.txt";
$file = fopen($filename, "w") ......

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<?php
/**
 by lenush;
 */
class Tree
{
    var $data    = array();
    var $child    = array(-1=>array());
    var $layer    = array(-1=>-1);
    var $parent &nbs ......

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<?php
# test.php
function test(){
     static $sss = 0;
     ++$sss;
     echo $sss;
}
test();
?>
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PHP ×Ö·û´®½ØÈ¡

<?php
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$str = cut_str($str, 18);
echo $str;
function cut_str($str, $len){
 if(strlen($str) <= $len) return $str;
 $n = 0;
 $tempstr = '';
 for($i = 0; ......

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