Online PHP editor | perf for 5UqfX

@ 2014-10-31T10:14:42Z

<?php

function stripNonValidCharaters ($message) {
        $count = 0;

        //mostly taken from https://dynmark.uservoice.com/knowledgebase/articles/83496-gsm-alphabet-character-set
        $search = [
            '`', '‘', '’',    //single quotes
            '“', '”',        //double quotes
            '~', '¬', '|'   //misc
        ];
        $replace = [
            '\'', '\'', '\'',   //single quotes
            '"', '"',           //double quotes
            '-', '-', 'I'       //misc
        ];

        $message = str_replace($search, $replace, $message, $count);

        $validGSMKeycodes = [
            0x0040, 0x0394, 0x0020, 0x0030, 0x00a1, 0x0050, 0x00bf, 0x0070,
            0x00a3, 0x005f, 0x0021, 0x0031, 0x0041, 0x0051, 0x0061, 0x0071,
            0x0024, 0x03a6, 0x0022, 0x0032, 0x0042, 0x0052, 0x0062, 0x0072,
            0x00a5, 0x0393, 0x0023, 0x0033, 0x0043, 0x0053, 0x0063, 0x0073,
            0x00e8, 0x039b, 0x00a4, 0x0034, 0x0035, 0x0044, 0x0054, 0x0064, 0x0074,
            0x00e9, 0x03a9, 0x0025, 0x0045, 0x0045, 0x0055, 0x0065, 0x0075,
            0x00f9, 0x03a0, 0x0026, 0x0036, 0x0046, 0x0056, 0x0066, 0x0076,
            0x00ec, 0x03a8, 0x0027, 0x0037, 0x0047, 0x0057, 0x0067, 0x0077,
            0x00f2, 0x03a3, 0x0028, 0x0038, 0x0048, 0x0058, 0x0068, 0x0078,
            0x00c7, 0x0398, 0x0029, 0x0039, 0x0049, 0x0059, 0x0069, 0x0079,
            0x000a, 0x039e, 0x002a, 0x003a, 0x004a, 0x005a, 0x006a, 0x007a,
            0x00d8, 0x001b, 0x002b, 0x003b, 0x004b, 0x00c4, 0x006b, 0x00e4,
            0x00f8, 0x00c6, 0x002c, 0x003c, 0x004c, 0x00d6, 0x006c, 0x00f6,
            0x000d, 0x00e6, 0x002d, 0x003d, 0x004d, 0x00d1, 0x006d, 0x00f1,
            0x00c5, 0x00df, 0x002e, 0x003e, 0x004e, 0x00dc, 0x006e, 0x00fc,
            0x00e5, 0x00c9, 0x002f, 0x003f, 0x004f, 0x00a7, 0x006f, 0x00e0 
			0x03d5];


        for($i = 0; $i < strlen($message); $i++) {
            if(!in_array(hexdec(bin2hex(substr($message, $i, 1))), $validGSMKeycodes, true)) {
                $message[$i] = '';
                $count++;
            }
        }
        $message = trim($message);

        return ['message' => $message, 'replacements' => $count];
    }


$message= "@£\$¥èéùìòÇØøÅåΔ_ΦΓΛΩΠΨΣΘΞÆæßÉ !\"#¤%&'()*+,-./0123456789:;>=<?¡ABCDEFGHIJKLMNOPQRSTUVWXYZÄÖÑÜ§¿abcdefghijklmnopqrstuvwxyzäöñüàExtended: €[\]^{|}~";

var_dump(stripNonValidCharaters($message));

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)
5.4.34	0.010	0.031	12.04
5.4.32	0.004	0.039	12.53
5.4.31	0.006	0.038	12.53
5.4.30	0.008	0.034	12.54
5.4.29	0.006	0.045	12.52
5.4.28	0.005	0.038	12.43
5.4.27	0.006	0.039	12.42
5.4.26	0.006	0.038	12.42
5.4.25	0.004	0.039	12.42
5.4.24	0.008	0.035	12.43
5.4.23	0.007	0.038	12.41
5.4.22	0.005	0.038	12.41
5.4.21	0.008	0.033	12.41
5.4.20	0.007	0.035	12.42
5.4.19	0.005	0.037	12.41
5.4.18	0.004	0.038	12.41
5.4.17	0.009	0.040	12.42
5.4.16	0.006	0.046	12.41
5.4.15	0.010	0.044	12.41
5.4.14	0.005	0.039	12.11
5.4.13	0.006	0.038	12.08
5.4.12	0.006	0.036	12.05
5.4.11	0.005	0.037	12.04
5.4.10	0.004	0.038	12.05
5.4.9	0.007	0.035	12.05
5.4.8	0.005	0.037	12.05
5.4.7	0.008	0.032	12.04
5.4.6	0.007	0.035	12.04
5.4.5	0.007	0.041	12.05
5.4.4	0.009	0.034	12.03
5.4.3	0.007	0.035	12.02
5.4.2	0.003	0.039	12.02
5.4.1	0.006	0.035	12.03
5.4.0	0.009	0.033	11.52
5.3.29	0.005	0.041	12.80
5.3.28	0.004	0.040	12.71
5.3.27	0.006	0.047	12.72
5.3.26	0.007	0.038	12.72
5.3.25	0.011	0.039	12.72
5.3.24	0.004	0.046	12.72
5.3.23	0.007	0.038	12.71
5.3.22	0.005	0.038	12.68
5.3.21	0.009	0.035	12.68
5.3.20	0.006	0.038	12.68
5.3.19	0.004	0.039	12.68
5.3.18	0.006	0.036	12.68
5.3.17	0.005	0.037	12.67
5.3.16	0.006	0.036	12.67
5.3.15	0.007	0.036	12.67
5.3.14	0.006	0.036	12.66
5.3.13	0.002	0.042	12.65
5.3.12	0.008	0.036	12.65
5.3.11	0.007	0.051	12.66
5.3.10	0.007	0.038	12.13
5.3.9	0.009	0.034	12.11
5.3.8	0.006	0.043	12.09
5.3.7	0.008	0.035	12.09
5.3.6	0.005	0.041	12.08
5.3.5	0.008	0.046	12.02
5.3.4	0.010	0.037	12.02
5.3.3	0.009	0.048	11.98
5.3.2	0.005	0.034	11.76
5.3.1	0.007	0.032	11.73
5.3.0	0.008	0.038	11.71
5.2.17	0.006	0.032	9.22
5.2.16	0.005	0.030	9.22
5.2.15	0.009	0.028	9.22
5.2.14	0.006	0.030	9.22
5.2.13	0.005	0.033	9.18
5.2.12	0.003	0.031	9.18
5.2.11	0.011	0.036	9.18
5.2.10	0.006	0.031	9.18
5.2.9	0.003	0.033	9.18
5.2.8	0.005	0.032	9.18
5.2.7	0.004	0.034	9.18
5.2.6	0.004	0.034	9.13
5.2.5	0.007	0.029	9.10
5.2.4	0.002	0.031	9.07
5.2.3	0.007	0.028	9.05
5.2.2	0.006	0.027	9.04
5.2.1	0.006	0.027	8.96
5.2.0	0.003	0.031	8.81
5.1.6	0.005	0.023	8.09
5.1.5	0.005	0.025	8.09
5.1.4	0.003	0.027	8.07
5.1.3	0.004	0.027	8.43
5.1.2	0.002	0.029	8.44
5.1.1	0.002	0.028	8.16
5.1.0	0.003	0.027	8.16
5.0.5	0.003	0.027	6.64
5.0.4	0.006	0.017	6.50
5.0.3	0.005	0.032	6.31
5.0.2	0.003	0.020	6.28
5.0.1	0.005	0.018	6.26
5.0.0	0.004	0.029	6.26
4.4.9	0.003	0.019	4.78
4.4.8	0.003	0.021	4.76
4.4.7	0.002	0.018	4.76
4.4.6	0.004	0.017	4.75
4.4.5	0.002	0.016	4.77
4.4.4	0.003	0.025	4.71
4.4.3	0.004	0.014	4.76
4.4.2	0.004	0.014	4.85
4.4.1	0.003	0.015	4.85
4.4.0	0.001	0.027	4.76
4.3.11	0.002	0.016	4.67
4.3.10	0.003	0.015	4.66
4.3.9	0.003	0.016	4.63
4.3.8	0.004	0.023	4.58
4.3.7	0.001	0.017	4.63
4.3.6	0.003	0.014	4.63
4.3.5	0.004	0.015	4.63
4.3.4	0.007	0.021	4.53
4.3.3	0.005	0.014	3.30
4.3.2	0.003	0.016	3.28
4.3.1	0.002	0.017	3.24
4.3.0	0.017	0.020	7.08

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