Parsing a chunk of code and display a CSV results

Overview

This example show how to parse a single string (chunk of code) and display results in CSV format with the corresponding renderer rather than the default one (Array).

Dependencies

This example requires mandatory resources :

PHP >= 4.3.10
PEAR >= 1.5.4
PEAR::PHP_CompatInfo >= 1.8.0
PEAR::File_Find >= 1.3.0
PEAR::Event_Dispatcher >= 1.0.0
tokenizer extension

Source Code

The very basic script to parse the chunk of code (lines 4 to 19)

<?php
require_once 'PHP/CompatInfo.php';
 
$str1 = '<?php
class Request6056
{
    function testMaxVersion()
    {
        // PHP 5 <= 5.0.4
        $res = php_check_syntax("bug6581.php");
 
        $array1 = array("blue"  => 1, "red"  => 2, "green"  => 3);
        $array2 = array("green" => 5, "blue" => 6, "yellow" => 7);
 
        // PHP 5 >= 5.1.0RC1
        $diff = array_diff_key($array1, $array2);
    }
}
?>';
 
$dataSource = array($str1);
// CAUTION: if you forget this option, you will have no output except a FALSE result
$options = array('is_string' => true);
 
$info = new PHP_CompatInfo('csv');
$info->parseArray($dataSource, $options);
// you may also use unified method: $info->parseData($dataSource, $options);
?>

Output

"Source code";"Version";"C";"Extensions";"Constants/Tokens"
"<?php ... ?>";"5.1.0,5.0.4";"0";"";""

Explains step by step

At line 25, we created an instance of PHP_CompatInfo with the renderer type to use (csv) and its default options:

fields-enclosed-by value is "
fields-terminated-by value is ;
fields-values-separated-by value is ,

At line 26, we used the parseArray() method because we have pre-set input for it (see line 21). But we also may used the parseString() method with $dataSource = $str1.

In all cases, don't forget to specify the parser option is_string (= true).

On CSV results, we can find an header line, follow by results itself. Of course each column available depend of output-level configuration option (default = 31 : all details).

<?php ... ?> identify a chunk of code analysed, and "C" = 0 (so accuray is at 100%).