Online PHP editor | perf for M7tJP

@ 2023-10-25T10:55:29Z

<?php

$str = <<<'EOD'
19018216307,Public,\,k]'=system1-system2,20230914143505.5,1-050000,No
32432151322,Public,blublabliblo,1324651651654.5,1-050000,No
EOD;

// change $filePath with the path of your file
$filePath = 'data:text/plain;base64,' . base64_encode($str);

if (false === $handle = fopen($filePath, 'r'))
    die("unable to open file $filePath");
    
$pattern = <<<'REGEX'
~(?nxx)
    (?# modifiers:
        - inline n: parenthesis act as a non-capturing group
        - inline xx: white-spaces are ignored even in character classes
        - global A: all the matches have to be contiguous
    )

    # pattern
    ( (?!\A) , \K | \A ) # not at the start with a commas or at the start without
    [^ , \\ ]* ( \\ . [^ , \\ ]* )* # field content (all that isn't a comma nor
                                    # a backslash, except escaped characters) 
                                           
    # final check
    ( \z (*:END) )? # define a marker if the end of the string is reached
~A
REGEX;

$result = [];

// stream_get_line doesn't return the newline sequence (3rd parameter)
// change it to \r\n or \r if needed, or use fgets and change \z with $ in the pattern
while(false !== $line = stream_get_line($handle, 1024, "\n")) {
    if (preg_match_all($pattern, $line, $m) && isset($m['MARK'])) {
        $fields = array_map(fn($s) => strtr($s, ['\\\\' => '\\', '\\' => '']), $m[0]);
        $result[] = $fields;
    }
    else {
        die("unable to parse the following line:\n$line");
    }
}

fclose($handle);

print_r($result);

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)
8.5.1	0.009	0.009	17.01
8.5.0	0.013	0.011	20.30
8.4.16	0.011	0.012	24.08
8.4.15	0.002	0.000	14.05
8.4.14	0.011	0.011	17.72
8.4.13	0.011	0.009	18.00
8.4.12	0.010	0.007	24.19
8.4.11	0.012	0.009	23.59
8.4.10	0.014	0.007	18.88
8.4.9	0.009	0.011	20.57
8.4.8	0.011	0.009	18.11
8.4.7	0.014	0.008	17.94
8.4.6	0.014	0.007	24.30
8.4.5	0.010	0.010	24.07
8.4.4	0.011	0.000	18.12
8.4.3	0.014	0.003	22.34
8.4.2	0.010	0.014	18.74
8.4.1	0.009	0.000	19.63
8.3.28	0.011	0.010	18.63
8.3.27	0.009	0.013	16.89
8.3.26	0.015	0.004	17.22
8.3.25	0.012	0.007	19.08
8.3.24	0.012	0.007	17.10
8.3.23	0.005	0.004	16.79
8.3.22	0.004	0.004	19.09
8.3.21	0.011	0.007	18.68
8.3.20	0.005	0.004	16.80
8.3.19	0.010	0.010	19.07
8.3.18	0.010	0.005	16.86
8.3.17	0.015	0.004	18.87
8.3.16	0.013	0.006	18.59
8.3.15	0.004	0.018	20.66
8.3.14	0.004	0.004	17.10
8.3.13	0.003	0.006	17.10
8.3.12	0.003	0.006	19.01
8.3.11	0.009	0.000	20.94
8.3.10	0.007	0.010	16.80
8.3.9	0.011	0.004	26.77
8.3.8	0.006	0.006	17.97
8.3.7	0.007	0.015	18.43
8.3.6	0.014	0.007	16.75
8.3.5	0.014	0.007	16.95
8.3.4	0.011	0.004	20.17
8.3.3	0.009	0.011	21.71
8.3.2	0.007	0.011	24.18
8.3.1	0.003	0.005	24.66
8.3.0	0.004	0.004	26.16
8.2.29	0.007	0.008	20.75
8.2.28	0.011	0.008	18.87
8.2.27	0.006	0.006	17.35
8.2.26	0.014	0.004	20.21
8.2.25	0.013	0.006	17.07
8.2.24	0.006	0.003	17.38
8.2.23	0.003	0.007	22.58
8.2.22	0.006	0.003	24.06
8.2.21	0.014	0.006	26.77
8.2.20	0.007	0.004	16.63
8.2.19	0.012	0.006	16.88
8.2.18	0.011	0.011	18.61
8.2.17	0.003	0.012	18.89
8.2.16	0.010	0.003	22.96
8.2.15	0.004	0.011	25.66
8.2.14	0.013	0.003	24.66
8.2.13	0.018	0.000	26.16
8.2.12	0.005	0.003	20.20
8.2.11	0.014	0.007	22.22
8.1.33	0.007	0.004	21.98
8.1.32	0.014	0.007	18.71
8.1.31	0.011	0.007	18.48
8.1.30	0.008	0.000	18.40
8.1.29	0.006	0.006	30.84
8.1.28	0.007	0.007	25.92
8.1.27	0.014	0.003	23.96
8.1.26	0.006	0.003	26.35
8.1.25	0.014	0.003	28.09
8.1.24	0.006	0.003	19.27

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