php curl

<?php
$uri = "http://113.57.142.227/sipopublicsearch/search/executeGeneralSearch-returnResultOnly.shtml";
// 参数数组
$data = array (
        'searchCondition.dbId' => 'VDB',
    'searchCondition.searchExp'    => '',
         'searchCondition.searchType' =>    'Sino_foreign',
      'wee.bizlog.modulelevel' => '0200101',
        );

$ch = curl_init ();
// print_r($ch);    
curl_setopt ( $ch, CURLOPT_URL, $uri );
curl_setopt ( $ch, CURLOPT_POST, 1 );
curl_setopt ( $ch, CURLOPT_POSTFIELDS, $data );
#curl_setopt($ch, CURLOPT_HTTPHEADER, false);
curl_setopt ( $ch, CURLOPT_HEADER, 0 );   //doesnot include header in result
curl_setopt ( $ch, CURLOPT_RETURNTRANSFER, 1);//set redirect to return of curl_exec
curl_setopt($ch, CURLOPT_ENCODING, "");
$return = curl_exec ( $ch );
if ($return === false) {
    var_dump(curl_error($ch));
}
curl_close ( $ch );
$return = preg_replace('/($\s*$)|(^\s*^)/m', '', $return);
#$matches=array();
preg_match("/(申请号)/m", $return, $matches);
foreach($matches as $match) {
    print $match;
}
#print_r($return);

$fp = fopen("log", "w");//文件被清空后再写入
if (!$fp) {
    die('open file error!');
}
$flag=fwrite($fp, $return);
if (!$flag) {
    die('fwrite file error!');
}

#$matches=array();
preg_match("/(.*?申请号.*)/m", $return, $matches);
foreach($matches as $match) {
    print $match;
}
#print_r($return);