PHP Decode

--TEST--
mysqli_debug() - mysqlnd only control strings
--EXTENSIONS--
mysqli
--SKIPIF--
<?php
require_once('skipifconnectfailure.inc');
require_once('connect.inc');

if (!function_exists('mysqli_debug'))
    die("skip mysqli_debug() not available");

if (!defined('MYSQLI_DEBUG_TRACE_ENABLED'))
    die("skip: can't say for sure if mysqli_debug works");

if (defined('MYSQLI_DEBUG_TRACE_ENABLED') && !MYSQLI_DEBUG_TRACE_ENABLED)
    die("skip: debug functionality not enabled");

if (!$IS_MYSQLND)
    die("skip mysqlnd only test");
?>
--FILE--
<?php
    require_once('connect.inc');
    require_once('table.inc');

    function try_control_string($link, $control_string, $trace_file, $offset) {

        @unlink($trace_file);
        if (true !== ($tmp = @mysqli_debug($control_string))) {
            printf("[%03d][control string '%s'] Expecting boolean/true, got %s/%s.\n",
                $offset + 1,
                $control_string,
                gettype($tmp),
                $tmp);
            return false;
        }

        if (!$res = mysqli_query($link, 'SELECT * FROM test')) {
            printf("[%03d][control string '%s'] [%d] %s.\n",
                $offset + 2,
                $control_string,
                mysqli_errno($link),
                mysqli_error($link));
            return false;
        }
        while ($row = mysqli_fetch_assoc($res))
            ;
        mysqli_free_result($res);

        clearstatcache();
        if (!file_exists($trace_file)) {
            printf("[%03d][control string '%s'] Trace file has not been written.\n",
                $offset + 3,
                $control_string,
                gettype($tmp),
                $tmp);
            return false;
        }

        return trim(substr(file_get_contents($trace_file), 0, 100024));
    }

    $memory_funcs = array(
        '_mysqlnd_ecalloc',
        '_mysqlnd_emalloc',
        '_mysqlnd_palloc_free_thd_cache_reference',
        '_mysqlnd_pecalloc',
        '_mysqlnd_pefree',
        '_mysqlnd_pemalloc',
        '_mysqlnd_perealloc',
    );
    $trace_file = sprintf('%s%s%s', sys_get_temp_dir(), DIRECTORY_SEPARATOR, 'mysqli_debug_phpt.trace');

    $trace = try_control_string($link, 't:m:O,' . $trace_file, $trace_file, 10);
    if (!strstr($trace, 'SELECT * FROM test') && !strstr($trace, 'mysql_real_query'))
        printf("[015] SELECT query cannot be found in trace. Trace contents seems wrong.\n");

    $lines_trace = explode("\n", $trace);
    $functions_trace = array();
    foreach ($lines_trace as $k => $line) {
        $line = trim($line);
        if (preg_match("@^[|\s]*>([\w:]+)@ism", $line, $matches)) {
            $functions_trace[$matches[1]] = $matches[1];
        }
    }

    $found = 0;
    foreach ($memory_funcs as $k => $name)
        if (isset($functions_trace[$name]))
            $found++;

    if ($found < 1) {
        printf("[016] Only %d memory functions have been found, expecting at least %d.\n",
            $found, 1);
        var_dump($trace);
    }

    $trace = try_control_string($link, 't:O,' . $trace_file, $trace_file, 20);
    if (!strstr($trace, 'SELECT * FROM test') && !strstr($trace, 'mysql_real_query'))
        printf("[025] SELECT query cannot be found in trace. Trace contents seems wrong.\n");

    $lines_trace = explode("\n", $trace);
    $functions_trace = array();
    foreach ($lines_trace as $k => $line) {
        $line = trim($line);
        if (preg_match("@^[|\s]*>([\w:]+)@ism", $line, $matches)) {
            $functions_trace[$matches[1]] = $matches[1];
        }
    }

    $found = 0;
    foreach ($memory_funcs as $k => $name)
        if (isset($functions_trace[$name]))
            $found++;

    if ($found > 2) {
        printf("[026] More than %d memory functions have been recorded, that's strange.\n",
            $found);
        var_dump($trace);
    }

    mysqli_close($link);
    @unlink($trace_file);
    print "done!";
?>
--CLEAN--
<?php
    require_once("clean_table.inc");
?>
--EXPECT--
done!