Implementation code for saving arrays to files in PHP_PHP Tutorial

function cacheArr(&$data){
if(!$data)throw new Exception('Array cannot be empty');
foreach($GLOBALS as $key=>$value){
$str=$GLOBALS[$key];
$GLOBALS[$key]='changed';
if($data== 'changed'){
$strName=$key;
break;
}
$GLOBALS[$key]=$str;
}
ob_clean();
ob_start();
echo "function echoArr($arr,$arrName){
$arrCount=count($arr);$i==0;
foreach ($arr as $key=>$value){
++$i;
if(is_array($value)){
echo "n".(is_numeric($key)?$key :'''.$key.''').'=>array(';
echoArr($value,$arrName.(is_numeric($key)?'['.$key.']': '[''.$key.'']'));
if($i!=$arrCount)echo '),';
else echo ')';
continue;
}
if($i!=$arrCount)echo ((is_numeric($key))?$key:'''.$key.''').'=>'.(is_numeric($value) ?$value:'''.$value.''').',';
else echo ((is_numeric($key))?$key:'''.$key.''').' =>'.(is_numeric($value)?$value:'''.$value.''');
}
}
echo '$'.$strName.'=array( ';
echoArr($data,'');
echo ');';
echo "n?>";
$file=fopen($strName.'.arr.php ','w');
fwrite($file,ob_get_contents());
fclose($file);
ob_clean();
return true;
}
? >
//Storage array
$hello=array(1=>'test',2=>array('hello123'));
cacheArr($ hello);
unset($hello);
//Read array
require 'hello.arr.php';
print_r($hello);
?>