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    Embedhtml using a large amount of memory
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    Posted by surveygizmo  · 07-08-2012 - 20:20

    Hi,
    We use phpdocx to automatically generate word documents for our customers based on their reports.

    The problem is embedHTML is using up a large amount of memory in php (~500mb) to generate a word document that only ends up being about 80k.

    While we are able to create this word document, for anything larger we hit the server's memory limit. I was wondering if there was someway to stream the document out to a file during embedHTML or if there was some way to limit the memory usage.

    Here's our code below along with memory usage dumps:
    [code] var_dump(6,memory_get_usage());

    $this->endSession();//close the document div
    $outputCode = '';
    $outputCode .= $this->getBody();//get the html
    unset($this->documentBuffer);

    var_dump(7,memory_get_usage());

    $file = $saveInPath.$fileName;
    $docx = new CreateDocx();

    var_dump(8,memory_get_usage());

    $docx->embedHTML($outputCode, array('parseDivsAsPs' => false, 'downloadImages' => true, 'id' => 'bodyContent'));
    unset($outputCode);

    var_dump(9,memory_get_usage());

    $docx->createDocx($file);

    var_dump(10,memory_get_usage());[/code]

    And here's the output:
    int(6)
    int(54476040)
    int(7)
    int(54476136)
    int(8)
    int(56217040)
    int(9)
    int(498491816)
    int(10)
    int(503589144)

    You'll notice how the memory jumps up from 56mb to 498mb between #8 and #9.

    Here's a link to the test doc file that was outputted:
    [url]http://surveygizmolibrary.s3.amazonaws.com/library/6175/testdoc.docx[/url]

    Thanks!
    -Chad