PHP debug_zval_dump函数代码示例

<?php

if (!extension_loaded("sqlite")) {
    dl("sqlite.so");
    if (!extension_loaded("sqlite")) {
        exit("Please enable SQLite support\n");
    }
}
debug_zval_dump(sqlite_libversion());
debug_zval_dump(sqlite_libencoding());
$s = sqlite_open("weztest.sqlite", 0666, $err);
debug_zval_dump($err);
debug_zval_dump($s);
$r = sqlite_query("create table foo (a INTEGER PRIMARY KEY, b INTEGER )", $s);
debug_zval_dump(sqlite_last_error($s));
debug_zval_dump(sqlite_error_string(sqlite_last_error($s)));
$r = sqlite_query("select *, php('md5', sql) as o from sqlite_master", $s);
debug_zval_dump($r);
debug_zval_dump(sqlite_num_rows($r));
debug_zval_dump(sqlite_num_fields($r));
for ($j = 0; $j < sqlite_num_fields($r); $j++) {
    echo "Field {$j} is " . sqlite_field_name($r, $j) . "\n";
}
while ($row = sqlite_fetch_array($r, SQLITE_ASSOC)) {
    print_r($row);
}
sqlite_close($s);

function dump_globalvar(&$local_var)
{
    global $global_var;
    echo "\n-- Value of local variable inside dump_globalvar() --\n";
    debug_zval_dump($local_var);
    echo "\n-- Value of global variable inside dump_globalvar() --\n";
    debug_zval_dump($global_var);
}

function zval_dump($values)
{
    $counter = 1;
    foreach ($values as $value) {
        echo "-- Iteration {$counter} --\n";
        debug_zval_dump($value);
        $counter++;
    }
}

function foo($ref, $alt)
{
    unset($GLOBALS['a']);
    unset($GLOBALS['b']);
    $GLOBALS['a'] = 1;
    $GLOBALS['b'] = 2;
    $org_a = $GLOBALS['a'];
    $org_b = $GLOBALS['b'];
    if ($ref) {
        global $a, $b;
    } else {
        /* zval temp_var(NULL); // refcount = 1
         * a = temp_var[x] // refcount = 2
         */
        $a = NULL;
        $b = NULL;
    }
    debug_zval_dump($a, $b, $GLOBALS['a'], $GLOBALS['b']);
    echo "--\n";
    if ($alt) {
        $a =& $GLOBALS['a'];
        $b =& $GLOBALS['b'];
    } else {
        extract($GLOBALS, EXTR_REFS);
    }
    debug_zval_dump($a, $b, $GLOBALS['a'], $GLOBALS['b']);
    echo "--\n";
    $a =& $GLOBALS['a'];
    $b =& $GLOBALS['b'];
    debug_zval_dump($a, $b, $GLOBALS['a'], $GLOBALS['b']);
    echo "--\n";
    $GLOBALS['b'] = 3;
    debug_zval_dump($a, $b, $GLOBALS['a'], $GLOBALS['b']);
    echo "--\n";
    $a = 4;
    debug_zval_dump($a, $b, $GLOBALS['a'], $GLOBALS['b']);
    echo "--\n";
    $c = $b;
    debug_zval_dump($b, $GLOBALS['b'], $c);
    echo "--\n";
    $b = 'x';
    debug_zval_dump($a, $b, $GLOBALS['a'], $GLOBALS['b'], $c);
    echo "--\n";
    debug_zval_dump($org_a, $org_b);
    echo "----";
    if ($ref) {
        echo 'r';
    }
    if ($alt) {
        echo 'a';
    }
    echo "\n";
}

function on_accept($stream, $flags, $event)
{
    global $CLIENTS;
    $mem = memory_get_usage();
    echo "on_accept({$stream}, {$flags}): mem={$mem} \n";
    if (false === ($con = stream_socket_accept($stream, 0, $name))) {
        echo "Accept failed\n";
    } else {
        echo "Peer:{$name}\n";
        $client = bufferevent_new($con, 'on_read', 'on_write', 'on_error');
        debug_zval_dump($client);
        // TODO: If bufferevent falls out of scope: disable and free buffer. also close stream.
        $CLIENTS[$name] = array(&$client, &$con);
        bufferevent_enable($client, EV_READ);
    }
}

 public function get($uid)
 {
     // hprint(debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS));
     // debug_print_backtrace();
     // go(); xdebug;
     $a = array('a' => 'a');
     debug_zval_dump($a);
     die;
     import('Mc');
     $mc = Mc::getInstance();
     hprint($mc);
     $mc->increment('aa', 1);
     $res = $mc->get('aa');
     echo $res;
     echo '<br>';
     //print_r($user->get());
 }

 /**
  * Inits class
  */
 private static function init()
 {
     if (null !== self::$offset) {
         return;
     }
     // calculate offset and mask
     self::$offset = 16 - PHP_INT_SIZE;
     self::$mask = -1;
     $tested = (object) array();
     if (defined('HHVM_VERSION')) {
         // HHVM specific
         self::$offset += 16;
     } else {
         // determine the mask to apply to object hashes
         ob_start();
         debug_zval_dump($tested);
         $debug = ob_get_clean();
         self::$mask = (int) substr($debug, strpos($debug, "#") + 1);
     }
     $relevantInt = self::getObjectHashRelevantInt($tested);
     self::$mask ^= $relevantInt;
 }

/**
 * Simple test for circular references
 * Example: detect_circular_references(get_defined_vars());
 * Currently tries to detect recursion within objects
 * @param mixed $vars
 * @param array $refs
 * @param array $objrefs
 */
function detect_circular_references($vars = array(), &$refs = array(), &$objrefs = array())
{
    foreach ($vars as $name => $var) {
        if (is_array($var)) {
            detect_circular_references($var, $refs, $objrefs);
        } else {
            if (is_object($var)) {
                ob_start();
                debug_zval_dump($var);
                $dump = ob_get_clean();
                if (strpos($dump, '*RECURSION*') !== false) {
                    //echo '*RECURSION*';
                    throw new CircularReferenceException('Circular reference in $' . $name);
                }
                /* $ref = spl_object_hash($var);
                	  if (isset($objrefs[$ref])){
                	  throw new CircularReferenceException();
                	  }
                	  $objrefs[$ref] = true;
                	  $reflection = new ReflectionObject($var);
                	  $properties = $reflection->getProperties();
                	  $pvars = array();
                	  foreach ($properties as $property) {
                	  if (version_compare(PHP_VERSION, '5.3', '>=')) {
                	  $property->setAccessible(true); // PHP 5.3
                	  $pvars[] = $property->getValue();
                	  } else {
                	  if ($property->isPublic()) {
                	  $pvars[] = $property->getValue();
                	  }
                	  }
                	  }
                	  detect_circular_references($pvars, $refs, $objrefs); */
            }
        }
    }
}

require_once 'table.inc';
$references = array();
if (!mysqli_real_query($link, "SELECT id, label FROM test ORDER BY id ASC LIMIT 1") || !($res = mysqli_store_result($link))) {
    printf("[001] [%d] %s\n", mysqli_errno($link), mysqli_error($link));
}
$idx = 0;
while ($row = mysqli_fetch_assoc($res)) {
    /* will overwrite itself */
    $references[$idx]['row_ref'] =& $row;
    $references[$idx]['row_copy'] = $row;
    $references[$idx]['id_ref'] =& $row['id'];
    $references[$idx++]['id_copy'] = $row['id'];
}
debug_zval_dump($references);
mysqli_free_result($res);
if (!mysqli_real_query($link, "SELECT id, label FROM test ORDER BY id ASC LIMIT 2") || !($res = mysqli_use_result($link))) {
    printf("[002] [%d] %s\n", mysqli_errno($link), mysqli_error($link));
}
$rows = array();
for ($i = 0; $i < 2; $i++) {
    $rows[$i] = mysqli_fetch_assoc($res);
    $references[$idx]['row_ref'] =& $rows[$i];
    $references[$idx]['row_copy'] = $rows[$i];
    $references[$idx]['id_ref'] =& $rows[$i]['id'];
    $references[$idx]['id_copy'] = $rows[$i]['id'];
    /* enforce separation */
    $references[$idx]['id_copy_mod'] = $rows[$i]['id'] + 0;
}
mysqli_free_result($res);
debug_zval_dump($references);
print "done!";

 function __call($name, $args)
 {
     debug_zval_dump($args);
     call_user_func_array('foo', $args);
 }

<?php

$a = array();
$b =& $a;
$a[0] = $a;
debug_zval_dump($a);
$a = array(array());
$b =& $a;
$a[0][0] = $a;
debug_zval_dump($a);

<?php

if (getenv('REDIR_TEST_DIR') === false) {
    putenv('REDIR_TEST_DIR=' . dirname(__FILE__) . '/../../pdo/tests/');
}
require_once getenv('REDIR_TEST_DIR') . 'pdo_test.inc';
$db = PDOTest::factory();
try {
    $ser = serialize($db);
    debug_zval_dump($ser);
    $db = unserialize($ser);
    $db->exec('CREATE TABLE test (id int NOT NULL PRIMARY KEY, val VARCHAR(10))');
} catch (Exception $e) {
    echo "Safely caught " . $e->getMessage() . "\n";
}
echo "PHP Didn't crash!\n";

        $row = array('id' => -1, '_bin' => -1, 'bit_value' => -1, '_bit_value0' => -1, 'bit_null' => -1);
        if (!mysqli_stmt_bind_result($stmt_sel, $row['id'], $row['_bin'], $row['bit_value'], $row['_bit_value0'], $row['bit_null'])) {
            printf("[010 - %d] [%d] %s\n", $bits, mysqli_stmt_errno($stmt_sel), mysqli_stmt_error($stmt_sel));
            break;
        }
        if (!($ret = mysqli_stmt_fetch($stmt_sel))) {
            printf("[011 - %d] mysqli_stmt_fetch() has failed for %d bits - ret = %s/%s, [%d] %s, [%d] %s\n", $bits, $bits, gettype($ret), $ret, mysqli_stmt_errno($stmt_sel), mysqli_stmt_error($stmt_sel), mysqli_errno($link_sel), mysqli_errno($link_sel));
            break;
        }
        if ($value != $row['id'] || $bin != $row['_bin'] && $bin2 != $row['_bin']) {
            debug_zval_dump($row);
            printf("[012 - %d] Insert of %s in BIT(%d) column might have failed. id = %s, bin = %s (%s/%s)\n", $bits, $value, $bits, $row['id'], $row['_bin'], $bin, $bin2);
            break;
        }
        if ($value != $row['bit_value']) {
            debug_zval_dump($row);
            printf("[013 - %d] Expecting %s got %s\n", $bits, $value, $row['bit_value']);
            break;
        }
        if (null !== $row['bit_null']) {
            debug_zval_dump($row);
            printf("[014 - %d] Expecting null got %s/%s\n", $bits, gettype($row['bit_value']), $row['bit_value']);
            break;
        }
    }
    mysqli_stmt_close($stmt_ins);
    mysqli_stmt_close($stmt_sel);
}
mysqli_close($link_ins);
mysqli_close($link_sel);
print "done!";

 function checkDuplicities(&$menu, $msg = '')
 {
     echo "<br />\n" . $msg . "<br />\n";
     // joomla defines duplicity as client_id, parent_id, alias, language
     $arr = array();
     foreach ($menu as $key => &$item) {
         $str = $item['client_id'] . '-' . $item['parent_id'] . '-' . $item['alias'] . '-' . $item['language'];
         if (isset($arr[$str])) {
             $count = 1;
             $item['alias'] = $item['alias'] . '-' . $count;
             $this->tryAlias($menu, $item, $count);
             $str = $item['client_id'] . '-' . $item['parent_id'] . '-' . $item['alias'] . '-' . $item['language'];
         }
         $arr[$str] = $key;
     }
     $test = array();
     $lftrgt = array();
     foreach ($menu as $m1) {
         // if (empty($m1['parent_id'])) continue;
         // skip for root
         if (!empty($m1['parent_id'])) {
             $left = $m1['lft'];
             $right = $menu[$m1['parent_id']]['rgt'];
             if ($right <= $left) {
                 $msg = "<br />\n" . 'parent id ' . $m1['parent_id'] . "<br />\n";
                 $msg .= ' right for parent: ' . $right . "<br />\n";
                 $msg .= ' left for item: ' . $left . " right for item " . $m1['rgt'] . " <br />\n";
                 $msg .= ' for item id ' . $m1['id'] . "<br />\n";
                 $msg .= ' error consistency right smaller left';
                 echo 'item:';
                 var_dump($m1);
                 echo 'parent:';
                 var_dump($menu[$m1['parent_id']]);
                 die('error consistency right smaller left' . $msg);
             }
         }
         if (!isset($lftrgt[$m1['lft']])) {
             $lftrgt[$m1['lft']] = $m1['id'];
             //if ($m1['lft']===0) die('ok');
         } else {
             echo 'id ' . $m1['id'] . ' shares the same left with ' . $lftrgt[$m1['lft']] . "<br />\n";
             debug_zval_dump($menu);
             die('shares...');
         }
         if (!isset($lftrgt[$m1['rgt']])) {
             $lftrgt[$m1['rgt']] = $m1['id'];
         } else {
             echo 'id ' . $m1['id'] . ' shares the same right with ' . $lftrgt[$m1['rgt']] . "<br />\n";
             echo ' count ' . count($menu);
             //debug_zval_dump($menu);
             die('shares the same right with.');
         }
     }
     //var_dump($menu[1]);
     // -1 because we start from 0
     $c = count($menu) * 2 - 1;
     for ($i = 0; $i < $c; $i++) {
         if (!isset($lftrgt[$i])) {
             echo ' 2: missing value for left or right on position ' . $i . "<br />\n";
             echo 'count: ' . count($menu);
             echo 'before: ';
             var_dump($menu[$lftrgt[$i - 1]]);
             echo 'next: ';
             if (!isset($menu[$lftrgt[$i + 1]])) {
                 var_dump($menu[1]);
             }
             var_dump($menu[$lftrgt[$i + 1]]);
             var_dump($menu[$lftrgt[$i + 2]]);
             //var_dump($menu[685]);
             die('2: missing');
         }
     }
 }

 /**
  * @param object $value
  * @param bool   $includeCurrent
  *
  * @return int
  */
 function getReferenceCount($value, $includeCurrent = \true)
 {
     \ob_start();
     \debug_zval_dump($value);
     $ret = \explode("\n", \ob_get_contents());
     \ob_end_clean();
     if (\count($ret) >= 1 and \preg_match('/^.* refcount\\(([0-9]+)\\)\\{$/', \trim($ret[0]), $m) > 0) {
         return (int) $m[1] - ($includeCurrent ? 3 : 4);
         //$value + zval call + extra call
     }
     return -1;
 }