Updating a xml file in a formatted text with php simplexml tool

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i'm using this\[code\]<?php$file = '/Applications/MAMP/htdocs/payback_service/payback_records.xml';if (file_exists($file)) { $sxe = simplexml_load_file($file); $movie = $sxe->addChild('record'); $movie->addChild('lat', 'PHP2: More Parser Stories'); $movie->addChild('lng', 'This is all about the people who make it work.'); $movie->addChild('address', 'PHP2: More Parser Stories'); $movie->addChild('picture_link', 'PHP2: More Parser Stories'); $movie->addChild('message', 'PHP2: More Parser Stories'); $sxe->asXML($file);} else { exit('Failed to open '.$file);}\[/code\]i want the text of the xml being updated in a formatted form.right now i am getting this:\[code\]<record><lat>PHP2: More Parser Stories</lat><lng>This is all about the people who make it work.</lng><address>PHP2: More Parser Stories</address><picture_link>PHP2: More Parser Stories</picture_link><message>PHP2: More Parser Stories</message></record><record><lat>PHP2: More Parser Stories</lat><lng>This is all about the people who make it work.</lng><address>PHP2: More Parser Stories</address><picture_link>PHP2: More Parser Stories</picture_link><message>PHP2: More Parser Stories</message></record></root>\[/code\]i need the file to be like this:\[code\]<record> <lat>1.5</lat> <lng>-8.5</lng> <address>this is the address</address> <picture_link>this is picture link</picture_link> <message>this is the message</message></record><record> <lat>1.5</lat> <lng>0.248</lng> <address>PHP2: More Parser Stories</address> <picture_link>PHP2: More Parser Stories</picture_link> <message>PHP2: More Parser Stories</message></record>\[/code\]