Online PHP editor | perf for tLdTL

@ 2023-05-23T18:28:27Z

<?php

class LogData
{
    private const LOG_TYPE_MISSING_PARENT = 'MISSING_PARENT';
    public array $lines = [];

    public function __construct(public readonly string $type, public readonly ?string $dateTime = null)
    {
    }

    /**
     * This object is used just in case the log file does not start with a log type.
     */
    public static function createMissingParentHolder(): self
    {
        return new self(self::LOG_TYPE_MISSING_PARENT);
    }
}

$logData = <<<EOT
INFO - 2023-05-23 09:10:45 --> CSRF token verified.
CRITICAL - 2023-05-23 09:24:54 --> Undefined array key 158
in APPPATH/Views/tables/components/record_year__months_regions.php on line 18.
 1 APPPATH/Views/tables/components/record_year__months_regions.php(18): CodeIgniter\Debug\Exceptions->errorHandler(2, 'Undefined array key 158', 'FILEPATH', 18)
17 FCPATH/index.php(67): CodeIgniter\CodeIgniter->run()
CRITICAL - 2023-05-23 09:26:33 --> Undefined array key 158
in APPPATH/Views/tables/components/record_year__months_regions.php on line 18.
EOT;

$fp = fopen('php://memory', 'rb+');
fwrite($fp, $logData);
rewind($fp);

$keywords = ['INFO', 'CRITICAL', 'ERROR', 'WARNING', 'DEBUG'];
$logObjects = [];
$currentLogObject = null;

while (($line = fgets($fp)) !== false) {
    $words = explode(' ', $line);
    $firstWord = $words[0] ?? '';
    $timeWord = $words[3] ?? '';

    // See if we found a special word
    if (in_array($firstWord, $keywords, true)) {

        // If we have an existing object, store it
        if ($currentLogObject) {
            $logObjects[] = $currentLogObject;
        }

        // Create a new object
        $currentLogObject = new LogData($firstWord, $timeWord);
    } elseif ($currentLogObject === null) {
        // We didn't find a special word, so make sure something exists to stash the line
        $currentLogObject = LogData::createMissingParentHolder();
    }

    // No matter what happens above, stash the line
    $currentLogObject->lines[] = $line;
}

// At the end of the loop, make sure to store the last object
if ($currentLogObject !== null) {
    $logObjects[] = $currentLogObject;
}

var_dump($logObjects);

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

Version	System time (s)	User time (s)	Memory (MiB)
8.5.3	0.010	0.009	19.39
8.5.2	0.008	0.009	20.11
8.5.1	0.003	0.006	19.42
8.5.0	0.014	0.008	20.13
8.4.18	0.006	0.005	22.22
8.4.17	0.011	0.010	23.58
8.4.16	0.016	0.006	23.96
8.4.15	0.007	0.006	16.87
8.4.14	0.014	0.006	17.67
8.4.13	0.005	0.005	17.77
8.4.12	0.009	0.011	20.51
8.4.11	0.007	0.011	18.78
8.4.10	0.007	0.003	18.67
8.4.9	0.011	0.009	20.65
8.4.8	0.007	0.002	17.75
8.4.7	0.011	0.009	17.64
8.4.6	0.009	0.003	18.89
8.4.5	0.011	0.011	20.53
8.4.4	0.003	0.006	20.79
8.4.3	0.012	0.008	22.05
8.4.2	0.017	0.003	17.89
8.4.1	0.007	0.013	21.88
8.3.30	0.012	0.008	20.80
8.3.29	0.013	0.009	18.75
8.3.28	0.007	0.005	16.22
8.3.27	0.013	0.007	16.36
8.3.26	0.015	0.004	16.67
8.3.25	0.013	0.006	19.09
8.3.24	0.010	0.010	16.36
8.3.23	0.003	0.005	16.50
8.3.22	0.012	0.007	18.91
8.3.21	0.005	0.002	16.74
8.3.20	0.006	0.005	16.68
8.3.19	0.007	0.012	16.96
8.3.18	0.010	0.009	16.70
8.3.17	0.013	0.007	17.34
8.3.16	0.010	0.010	18.39
8.3.15	0.004	0.012	16.62
8.3.14	0.003	0.006	17.02
8.3.13	0.013	0.003	18.36
8.3.12	0.007	0.013	19.01
8.3.11	0.000	0.009	22.58
8.3.10	0.005	0.003	22.58
8.3.9	0.008	0.008	22.58
8.3.5	0.005	0.005	22.58
8.2.30	0.011	0.008	17.85
8.2.29	0.016	0.003	20.80
8.2.28	0.012	0.007	18.84
8.2.27	0.006	0.012	17.49
8.2.26	0.004	0.004	20.87
8.2.25	0.000	0.009	16.73
8.2.24	0.010	0.010	17.11
8.2.23	0.004	0.004	22.58
8.2.22	0.007	0.003	22.58
8.2.21	0.004	0.004	22.58
8.2.6	0.016	0.001	17.29
8.2.5	0.015	0.003	17.25
8.2.4	0.012	0.004	17.38
8.2.3	0.014	0.003	17.38
8.2.2	0.010	0.007	17.50
8.2.1	0.012	0.005	17.38
8.2.0	0.015	0.003	17.61
8.1.34	0.012	0.008	19.66
8.1.33	0.011	0.002	22.00
8.1.32	0.015	0.005	16.22
8.1.31	0.013	0.006	18.45
8.1.30	0.000	0.009	17.59
8.1.19	0.012	0.004	16.88
8.1.18	0.011	0.006	16.88
8.1.17	0.015	0.003	17.13
8.1.16	0.014	0.004	17.13
8.1.15	0.019	0.000	16.97
8.1.14	0.009	0.006	17.13
8.1.13	0.006	0.009	17.25
8.1.12	0.017	0.000	17.13
8.1.11	0.009	0.006	17.47
8.1.10	0.014	0.003	17.23
8.1.9	0.013	0.003	17.25
8.1.8	0.017	0.000	17.13
8.1.7	0.013	0.003	17.23
8.1.6	0.012	0.008	17.38
8.1.5	0.014	0.003	17.50
8.1.4	0.008	0.008	17.50
8.1.3	0.010	0.007	17.50
8.1.2	0.009	0.009	17.13
8.1.1	0.018	0.000	17.25
8.1.0	0.015	0.003	17.13
8.0.28	0.016	0.000	16.52
8.0.27	0.015	0.000	16.63
8.0.26	0.017	0.000	16.52
8.0.25	0.007	0.007	16.52
8.0.24	0.012	0.004	16.52
8.0.23	0.015	0.000	16.52
8.0.22	0.013	0.003	16.52
8.0.21	0.014	0.003	16.52
8.0.20	0.012	0.004	16.63
8.0.19	0.015	0.000	16.52
8.0.18	0.010	0.007	16.59
8.0.17	0.009	0.006	16.52
8.0.16	0.008	0.008	16.52
8.0.15	0.014	0.003	16.52
8.0.14	0.010	0.006	16.52
8.0.13	0.013	0.003	16.75
8.0.12	0.008	0.008	16.52
8.0.11	0.010	0.005	16.52
8.0.10	0.013	0.003	16.63
8.0.9	0.015	0.000	16.52
8.0.8	0.015	0.000	16.75
8.0.7	0.013	0.004	16.52
8.0.6	0.004	0.012	16.52
8.0.5	0.014	0.003	16.52
8.0.3	0.011	0.004	16.63
8.0.2	0.016	0.000	16.52
8.0.1	0.013	0.003	16.52

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