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<?php
namespace Barryvdh\Debugbar\DataCollector;
use DebugBar\DataCollector\PDO\PDOCollector;
use DebugBar\DataCollector\TimeDataCollector;
use Illuminate\Support\Str;
/**
* Collects data about SQL statements executed with PDO
*/
class QueryCollector extends PDOCollector
{
protected $timeCollector;
protected $queries = [];
protected $queryCount = 0;
protected $softLimit = null;
protected $hardLimit = null;
protected $lastMemoryUsage;
protected $renderSqlWithParams = false;
protected $findSource = false;
protected $middleware = [];
protected $durationBackground = true;
protected $explainQuery = false;
protected $explainTypes = ['SELECT']; // ['SELECT', 'INSERT', 'UPDATE', 'DELETE']; for MySQL 5.6.3+
protected $showHints = false;
protected $showCopyButton = false;
protected $reflection = [];
protected $backtraceExcludePaths = [
'/vendor/laravel/framework/src/Illuminate/Support',
'/vendor/laravel/framework/src/Illuminate/Database',
'/vendor/laravel/framework/src/Illuminate/Events',
'/vendor/laravel/framework/src/Illuminate/Collections',
'/vendor/october/rain',
'/vendor/barryvdh/laravel-debugbar',
];
/**
* @param TimeDataCollector $timeCollector
*/
public function __construct(TimeDataCollector $timeCollector = null)
{
$this->timeCollector = $timeCollector;
}
/**
* @param int|null $softLimit After the soft limit, no parameters/backtrace are captured
* @param int|null $hardLimit After the hard limit, queries are ignored
* @return void
*/
public function setLimits(?int $softLimit, ?int $hardLimit): void
{
$this->softLimit = $softLimit;
$this->hardLimit = $hardLimit;
}
/**
* Renders the SQL of traced statements with params embedded
*
* @param boolean $enabled
* @param string $quotationChar NOT USED
*/
public function setRenderSqlWithParams($enabled = true, $quotationChar = "'")
{
$this->renderSqlWithParams = $enabled;
}
/**
* Show or hide the hints in the parameters
*
* @param boolean $enabled
*/
public function setShowHints($enabled = true)
{
$this->showHints = $enabled;
}
/**
* Show or hide copy button next to the queries
*
* @param boolean $enabled
*/
public function setShowCopyButton($enabled = true)
{
$this->showCopyButton = $enabled;
}
/**
* Enable/disable finding the source
*
* @param bool|int $value
* @param array $middleware
*/
public function setFindSource($value, array $middleware)
{
$this->findSource = $value;
$this->middleware = $middleware;
}
/**
* Set additional paths to exclude from the backtrace
*
* @param array $excludePaths Array of file paths to exclude from backtrace
*/
public function mergeBacktraceExcludePaths(array $excludePaths)
{
$this->backtraceExcludePaths = array_merge($this->backtraceExcludePaths, $excludePaths);
}
/**
* Enable/disable the shaded duration background on queries
*
* @param bool $enabled
*/
public function setDurationBackground($enabled = true)
{
$this->durationBackground = $enabled;
}
/**
* Enable/disable the EXPLAIN queries
*
* @param bool $enabled
* @param array|null $types Array of types to explain queries (select/insert/update/delete)
*/
public function setExplainSource($enabled, $types)
{
$this->explainQuery = $enabled;
// workaround ['SELECT'] only. https://github.com/barryvdh/laravel-debugbar/issues/888
// if($types){
// $this->explainTypes = $types;
// }
}
public function startMemoryUsage()
{
$this->lastMemoryUsage = memory_get_usage(false);
}
/**
*
* @param \Illuminate\Database\Events\QueryExecuted $query
*/
public function addQuery($query)
{
$this->queryCount++;
if ($this->hardLimit && $this->queryCount > $this->hardLimit) {
return;
}
$limited = $this->softLimit && $this->queryCount > $this->softLimit;
$sql = (string) $query->sql;
$explainResults = [];
$time = $query->time / 1000;
$endTime = microtime(true);
$startTime = $endTime - $time;
$hints = $this->performQueryAnalysis($sql);
$pdo = null;
try {
$pdo = $query->connection->getPdo();
} catch (\Throwable $e) {
// ignore error for non-pdo laravel drivers
}
$bindings = $query->connection->prepareBindings($query->bindings);
// Run EXPLAIN on this query (if needed)
if (!$limited && $this->explainQuery && $pdo && preg_match('/^\s*(' . implode('|', $this->explainTypes) . ') /i', $sql)) {
$statement = $pdo->prepare('EXPLAIN ' . $sql);
$statement->execute($bindings);
$explainResults = $statement->fetchAll(\PDO::FETCH_CLASS);
}
$bindings = $this->getDataFormatter()->checkBindings($bindings);
if (!empty($bindings) && $this->renderSqlWithParams) {
foreach ($bindings as $key => $binding) {
// This regex matches placeholders only, not the question marks,
// nested in quotes, while we iterate through the bindings
// and substitute placeholders by suitable values.
$regex = is_numeric($key)
? "/(?<!\?)\?(?=(?:[^'\\\']*'[^'\\']*')*[^'\\\']*$)(?!\?)/"
: "/:{$key}(?=(?:[^'\\\']*'[^'\\\']*')*[^'\\\']*$)/";
// Mimic bindValue and only quote non-integer and non-float data types
if (!is_int($binding) && !is_float($binding)) {
if ($pdo) {
try {
$binding = $pdo->quote((string) $binding);
} catch (\Exception $e) {
$binding = $this->emulateQuote($binding);
}
} else {
$binding = $this->emulateQuote($binding);
}
}
$sql = preg_replace($regex, addcslashes($binding, '$'), $sql, 1);
}
}
$source = [];
if (!$limited && $this->findSource) {
try {
$source = $this->findSource();
} catch (\Exception $e) {
}
}
$this->queries[] = [
'query' => $sql,
'type' => 'query',
'bindings' => !$limited ? $this->getDataFormatter()->escapeBindings($bindings) : null,
'start' => $startTime,
'time' => $time,
'memory' => $this->lastMemoryUsage ? memory_get_usage(false) - $this->lastMemoryUsage : 0,
'source' => $source,
'explain' => $explainResults,
'connection' => $query->connection->getDatabaseName(),
'driver' => $query->connection->getConfig('driver'),
'hints' => ($this->showHints && !$limited) ? $hints : null,
'show_copy' => $this->showCopyButton,
];
if ($this->timeCollector !== null) {
$this->timeCollector->addMeasure(Str::limit($sql, 100), $startTime, $endTime, [], 'db');
}
}
/**
* Mimic mysql_real_escape_string
*
* @param string $value
* @return string
*/
protected function emulateQuote($value)
{
$search = ["\\", "\x00", "\n", "\r", "'", '"', "\x1a"];
$replace = ["\\\\","\\0","\\n", "\\r", "\'", '\"', "\\Z"];
return "'" . str_replace($search, $replace, (string) $value) . "'";
}
/**
* Explainer::performQueryAnalysis()
*
* Perform simple regex analysis on the code
*
* @package xplain (https://github.com/rap2hpoutre/mysql-xplain-xplain)
* @author e-doceo
* @copyright 2014
* @version $Id$
* @access public
* @param string $query
* @return string[]
*/
protected function performQueryAnalysis($query)
{
// @codingStandardsIgnoreStart
$hints = [];
if (preg_match('/^\\s*SELECT\\s*`?[a-zA-Z0-9]*`?\\.?\\*/i', $query)) {
$hints[] = 'Use <code>SELECT *</code> only if you need all columns from table';
}
if (preg_match('/ORDER BY RAND()/i', $query)) {
$hints[] = '<code>ORDER BY RAND()</code> is slow, try to avoid if you can.
You can <a href="https://stackoverflow.com/questions/2663710/how-does-mysqls-order-by-rand-work" target="_blank">read this</a>
or <a href="https://stackoverflow.com/questions/1244555/how-can-i-optimize-mysqls-order-by-rand-function" target="_blank">this</a>';
}
if (strpos($query, '!=') !== false) {
$hints[] = 'The <code>!=</code> operator is not standard. Use the <code><></code> operator to test for inequality instead.';
}
if (stripos($query, 'WHERE') === false && preg_match('/^(SELECT) /i', $query)) {
$hints[] = 'The <code>SELECT</code> statement has no <code>WHERE</code> clause and could examine many more rows than intended';
}
if (preg_match('/LIMIT\\s/i', $query) && stripos($query, 'ORDER BY') === false) {
$hints[] = '<code>LIMIT</code> without <code>ORDER BY</code> causes non-deterministic results, depending on the query execution plan';
}
if (preg_match('/LIKE\\s[\'"](%.*?)[\'"]/i', $query, $matches)) {
$hints[] = 'An argument has a leading wildcard character: <code>' . $matches[1] . '</code>.
The predicate with this argument is not sargable and cannot use an index if one exists.';
}
return $hints;
// @codingStandardsIgnoreEnd
}
/**
* Use a backtrace to search for the origins of the query.
*
* @return array
*/
protected function findSource()
{
$stack = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS | DEBUG_BACKTRACE_PROVIDE_OBJECT, app('config')->get('debugbar.debug_backtrace_limit', 50));
$sources = [];
foreach ($stack as $index => $trace) {
$sources[] = $this->parseTrace($index, $trace);
}
return array_slice(array_filter($sources), 0, is_int($this->findSource) ? $this->findSource : 5);
}
/**
* Parse a trace element from the backtrace stack.
*
* @param int $index
* @param array $trace
* @return object|bool
*/
protected function parseTrace($index, array $trace)
{
$frame = (object) [
'index' => $index,
'namespace' => null,
'name' => null,
'file' => null,
'line' => isset($trace['line']) ? $trace['line'] : '?',
];
if (isset($trace['function']) && $trace['function'] == 'substituteBindings') {
$frame->name = 'Route binding';
return $frame;
}
if (
isset($trace['class']) &&
isset($trace['file']) &&
!$this->fileIsInExcludedPath($trace['file'])
) {
$frame->file = $trace['file'];
if (isset($trace['object']) && is_a($trace['object'], 'Twig_Template')) {
list($frame->file, $frame->line) = $this->getTwigInfo($trace);
} elseif (strpos($frame->file, storage_path()) !== false) {
$hash = pathinfo($frame->file, PATHINFO_FILENAME);
if ($frame->name = $this->findViewFromHash($hash)) {
$frame->file = $frame->name[1];
$frame->name = $frame->name[0];
} else {
$frame->name = $hash;
}
$frame->namespace = 'view';
return $frame;
} elseif (strpos($frame->file, 'Middleware') !== false) {
$frame->name = $this->findMiddlewareFromFile($frame->file);
if ($frame->name) {
$frame->namespace = 'middleware';
} else {
$frame->name = $this->normalizeFilePath($frame->file);
}
return $frame;
}
$frame->name = $this->normalizeFilePath($frame->file);
return $frame;
}
return false;
}
/**
* Check if the given file is to be excluded from analysis
*
* @param string $file
* @return bool
*/
protected function fileIsInExcludedPath($file)
{
$normalizedPath = str_replace('\\', '/', $file);
foreach ($this->backtraceExcludePaths as $excludedPath) {
if (strpos($normalizedPath, $excludedPath) !== false) {
return true;
}
}
return false;
}
/**
* Find the middleware alias from the file.
*
* @param string $file
* @return string|null
*/
protected function findMiddlewareFromFile($file)
{
$filename = pathinfo($file, PATHINFO_FILENAME);
foreach ($this->middleware as $alias => $class) {
if (strpos($class, $filename) !== false) {
return $alias;
}
}
}
/**
* Find the template name from the hash.
*
* @param string $hash
* @return null|array
*/
protected function findViewFromHash($hash)
{
$finder = app('view')->getFinder();
if (isset($this->reflection['viewfinderViews'])) {
$property = $this->reflection['viewfinderViews'];
} else {
$reflection = new \ReflectionClass($finder);
$property = $reflection->getProperty('views');
$property->setAccessible(true);
$this->reflection['viewfinderViews'] = $property;
}
$xxh128Exists = in_array('xxh128', hash_algos());
foreach ($property->getValue($finder) as $name => $path) {
if (($xxh128Exists && hash('xxh128', 'v2' . $path) == $hash) || sha1('v2' . $path) == $hash) {
return [$name, $path];
}
}
}
/**
* Get the filename/line from a Twig template trace
*
* @param array $trace
* @return array The file and line
*/
protected function getTwigInfo($trace)
{
$file = $trace['object']->getTemplateName();
if (isset($trace['line'])) {
foreach ($trace['object']->getDebugInfo() as $codeLine => $templateLine) {
if ($codeLine <= $trace['line']) {
return [$file, $templateLine];
}
}
}
return [$file, -1];
}
/**
* Collect a database transaction event.
* @param string $event
* @param \Illuminate\Database\Connection $connection
* @return array
*/
public function collectTransactionEvent($event, $connection)
{
$source = [];
if ($this->findSource) {
try {
$source = $this->findSource();
} catch (\Exception $e) {
}
}
$this->queries[] = [
'query' => $event,
'type' => 'transaction',
'bindings' => [],
'start' => microtime(true),
'time' => 0,
'memory' => 0,
'source' => $source,
'explain' => [],
'connection' => $connection->getDatabaseName(),
'driver' => $connection->getConfig('driver'),
'hints' => null,
'show_copy' => false,
];
}
/**
* Reset the queries.
*/
public function reset()
{
$this->queries = [];
$this->queryCount = 0;
}
/**
* {@inheritDoc}
*/
public function collect()
{
$totalTime = 0;
$totalMemory = 0;
$queries = $this->queries;
$statements = [];
foreach ($queries as $query) {
$source = reset($query['source']);
$totalTime += $query['time'];
$totalMemory += $query['memory'];
$statements[] = [
'sql' => $this->getDataFormatter()->formatSql($query['query']),
'type' => $query['type'],
'params' => [],
'bindings' => $query['bindings'],
'hints' => $query['hints'],
'show_copy' => $query['show_copy'],
'backtrace' => array_values($query['source']),
'start' => $query['start'] ?? null,
'duration' => $query['time'],
'duration_str' => ($query['type'] == 'transaction') ? '' : $this->formatDuration($query['time']),
'memory' => $query['memory'],
'memory_str' => $query['memory'] ? $this->getDataFormatter()->formatBytes($query['memory']) : null,
'filename' => $this->getDataFormatter()->formatSource($source, true),
'source' => $this->getDataFormatter()->formatSource($source),
'xdebug_link' => is_object($source) ? $this->getXdebugLink($source->file ?: '', $source->line) : null,
'connection' => $query['connection'],
];
if ($query['explain']) {
// Add the results from the EXPLAIN as new rows
if ($query['driver'] === 'pgsql') {
$explainer = trim(implode("\n", array_map(function ($explain) {
return $explain->{'QUERY PLAN'};
}, $query['explain'])));
if ($explainer) {
$statements[] = [
'sql' => " - EXPLAIN: {$explainer}",
'type' => 'explain',
];
}
} elseif ($query['driver'] === 'sqlite') {
$vmi = '<table style="margin:-5px -11px !important;width: 100% !important">';
$vmi .= "<thead><tr>
<td>Address</td>
<td>Opcode</td>
<td>P1</td>
<td>P2</td>
<td>P3</td>
<td>P4</td>
<td>P5</td>
<td>Comment</td>
</tr></thead>";
foreach ($query['explain'] as $explain) {
$vmi .= "<tr>
<td>{$explain->addr}</td>
<td>{$explain->opcode}</td>
<td>{$explain->p1}</td>
<td>{$explain->p2}</td>
<td>{$explain->p3}</td>
<td>{$explain->p4}</td>
<td>{$explain->p5}</td>
<td>{$explain->comment}</td>
</tr>";
}
$vmi .= '</table>';
$statements[] = [
'sql' => " - EXPLAIN:",
'type' => 'explain',
'params' => [
'Virtual Machine Instructions' => $vmi,
]
];
} else {
foreach ($query['explain'] as $explain) {
$statements[] = [
'sql' => " - EXPLAIN # {$explain->id}: `{$explain->table}` ({$explain->select_type})",
'type' => 'explain',
'params' => $explain,
'row_count' => $explain->rows,
'stmt_id' => $explain->id,
];
}
}
}
}
if ($this->durationBackground) {
if ($totalTime > 0) {
// For showing background measure on Queries tab
$start_percent = 0;
foreach ($statements as $i => $statement) {
if (!isset($statement['duration'])) {
continue;
}
$width_percent = $statement['duration'] / $totalTime * 100;
$statements[$i] = array_merge($statement, [
'start_percent' => round($start_percent, 3),
'width_percent' => round($width_percent, 3),
]);
$start_percent += $width_percent;
}
}
}
if ($this->softLimit && $this->hardLimit && ($this->queryCount > $this->softLimit && $this->queryCount > $this->hardLimit)) {
array_unshift($statements, [
'sql' => '# Query soft and hard limit for Debugbar are reached. Only the first ' . $this->softLimit . ' queries show details. Queries after the first ' . $this->hardLimit . ' are ignored. Limits can be raised in the config (debugbar.options.db.soft/hard_limit).',
'type' => 'info',
]);
$statements[] = [
'sql' => '... ' . ($this->queryCount - $this->hardLimit) . ' additional queries are executed but now shown because of Debugbar query limits. Limits can be raised in the config (debugbar.options.db.soft/hard_limit)',
'type' => 'info',
];
} elseif ($this->hardLimit && $this->queryCount > $this->hardLimit) {
array_unshift($statements, [
'sql' => '# Query hard limit for Debugbar is reached after ' . $this->hardLimit . ' queries, additional ' . ($this->queryCount - $this->hardLimit) . ' queries are not shown.. Limits can be raised in the config (debugbar.options.db.hard_limit)',
'type' => 'info',
]);
$statements[] = [
'sql' => '... ' . ($this->queryCount - $this->hardLimit) . ' additional queries are executed but now shown because of Debugbar query limits. Limits can be raised in the config (debugbar.options.db.hard_limit)',
'type' => 'info',
];
} elseif ($this->softLimit && $this->queryCount > $this->softLimit) {
array_unshift($statements, [
'sql' => '# Query soft limit for Debugbar is reached after ' . $this->softLimit . ' queries, additional ' . ($this->queryCount - $this->softLimit) . ' queries only show the query. Limit can be raised in the config. Limits can be raised in the config (debugbar.options.db.soft_limit)',
'type' => 'info',
]);
}
$data = [
'nb_statements' => $this->queryCount,
'nb_failed_statements' => 0,
'accumulated_duration' => $totalTime,
'accumulated_duration_str' => $this->formatDuration($totalTime),
'memory_usage' => $totalMemory,
'memory_usage_str' => $totalMemory ? $this->getDataFormatter()->formatBytes($totalMemory) : null,
'statements' => $statements
];
return $data;
}
/**
* {@inheritDoc}
*/
public function getName()
{
return 'queries';
}
/**
* {@inheritDoc}
*/
public function getWidgets()
{
return [
"queries" => [
"icon" => "database",
"widget" => "PhpDebugBar.Widgets.SQLQueriesWidget",
"map" => "queries",
"default" => "[]"
],
"queries:badge" => [
"map" => "queries.nb_statements",
"default" => 0
]
];
}
}
How it Works
Getting started with NFC Pay is simple and quick. Register your account, add your cards, and you're ready to make payments in no time. Whether you're paying at a store, sending money to a friend, or managing your merchant transactions, NFC Pay makes it easy and secure.
Download the NFC Pay app and sign up with your email or phone number. Complete the registration process by verifying your identity, and set up your secure PIN to protect your account.
Link your debit or credit cards to your NFC Pay wallet. Simply scan your card or enter the details manually, and you’re set to load funds, shop, and pay with ease.
To pay, simply tap your phone or scan the QR code at checkout. You can also transfer money to other users with a few taps. Enjoy fast, contactless payments with top-notch security.
Security System
NFC Pay prioritizes your security with advanced features that safeguard every transaction. From SMS or email verification to end-to-end encryption, we've implemented robust measures to ensure your data is always protected. Our security systems are designed to prevent unauthorized access and provide you with a safe and reliable payment experience.
Receive instant alerts for every transaction to keep track of your account activities.
Verify your identity through our Know Your Customer process to prevent fraud and enhance security.
Dramatically supply transparent backward deliverables before caward comp internal or "organic" sources.
All your data and transactions are encrypted, ensuring that your sensitive information remains private.
Monitor unusual activity patterns to detect and prevent suspicious behavior in real-time.
Why Choice Us
With NFC Pay, you get a trusted platform backed by proven expertise and a commitment to quality. We put our customers first, offering innovative solutions tailored to your needs, ensuring every transaction is secure, swift, and seamless.
Our team brings years of experience in the digital payments industry to provide reliable services.
We prioritize excellence, ensuring that every aspect of our platform meets the highest standards.
Your needs drive our solutions, and we are dedicated to delivering a superior user experience.
We continuously evolve, integrating the latest technologies to enhance your payment experience.
Testimonial Section
Hear from our users who trust NFC Pay for their everyday transactions. Our commitment to security, ease of use, and exceptional service shines through in their experiences. See why our clients choose NFC Pay for their payment needs and how it has transformed the way they manage their finances.
App Section
Unlock the full potential of NFC Pay by downloading our app, designed to bring secure, swift, and smart transactions to your fingertips. Whether you're paying at a store, transferring money to friends, or managing your business payments, the NFC Pay app makes it effortless. Available on both iOS and Android, it's your all-in-one solution for convenient and reliable digital payments. Download now and experience the future of payments!