Online PHP editor | perf for cdS3m

<?php $var = '_________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________'; var_dump(strlen($var)); $$var = 4; var_dump($$var);

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)
8.3.6	0.011	0.007	18.43
8.3.5	0.018	0.004	21.94
8.3.4	0.007	0.007	18.76
8.3.3	0.009	0.012	18.96
8.3.2	0.004	0.004	20.29
8.3.1	0.000	0.008	23.66
8.3.0	0.005	0.003	19.13
8.2.18	0.005	0.009	18.15
8.2.17	0.015	0.000	22.96
8.2.16	0.014	0.000	20.35
8.2.15	0.007	0.000	24.18
8.2.14	0.004	0.004	24.66
8.2.13	0.004	0.004	26.16
8.2.12	0.004	0.004	22.22
8.2.11	0.003	0.007	22.21
8.2.10	0.004	0.007	17.92
8.2.9	0.006	0.003	19.22
8.2.8	0.005	0.003	17.97
8.2.7	0.003	0.006	17.50
8.2.6	0.003	0.005	18.04
8.2.5	0.005	0.003	18.09
8.2.4	0.004	0.004	22.16
8.2.3	0.008	0.000	18.10
8.2.2	0.003	0.005	17.73
8.2.1	0.005	0.002	18.12
8.2.0	0.004	0.004	17.70
8.1.28	0.007	0.007	25.92
8.1.27	0.003	0.006	23.88
8.1.26	0.000	0.007	26.35
8.1.25	0.003	0.005	28.09
8.1.24	0.004	0.004	23.82
8.1.23	0.007	0.003	17.70
8.1.22	0.000	0.007	17.74
8.1.21	0.003	0.007	18.77
8.1.20	0.003	0.006	17.35
8.1.19	0.005	0.003	17.23
8.1.18	0.006	0.003	18.10
8.1.17	0.004	0.004	18.59
8.1.16	0.000	0.008	20.67
8.1.15	0.004	0.004	18.83
8.1.14	0.007	0.000	17.51
8.1.13	0.000	0.007	17.78
8.1.12	0.008	0.000	17.49
8.1.11	0.007	0.000	17.52
8.1.10	0.004	0.004	17.48
8.1.9	0.000	0.008	17.38
8.1.8	0.007	0.000	17.49
8.1.7	0.004	0.004	17.49
8.1.6	0.009	0.003	17.61
8.1.5	0.005	0.003	17.59
8.1.4	0.009	0.000	17.53
8.1.3	0.000	0.008	17.65
8.1.2	0.003	0.006	17.66
8.1.1	0.000	0.007	17.57
8.1.0	0.000	0.008	17.47
8.0.30	0.008	0.000	18.77
8.0.29	0.003	0.006	16.75
8.0.28	0.000	0.007	18.36
8.0.27	0.003	0.003	17.34
8.0.26	0.000	0.006	17.17
8.0.25	0.000	0.007	16.89
8.0.24	0.003	0.003	16.87
8.0.23	0.000	0.007	16.99
8.0.22	0.003	0.003	16.96
8.0.21	0.008	0.000	16.80
8.0.20	0.003	0.003	16.89
8.0.19	0.000	0.007	16.95
8.0.18	0.004	0.004	16.97
8.0.17	0.003	0.005	16.92
8.0.16	0.004	0.004	17.04
8.0.15	0.005	0.002	16.75
8.0.14	0.003	0.003	16.79
8.0.13	0.000	0.006	13.45
8.0.12	0.007	0.000	16.93
8.0.11	0.005	0.002	16.96
8.0.10	0.000	0.007	16.88
8.0.9	0.004	0.004	17.04
8.0.8	0.006	0.015	16.93
8.0.7	0.005	0.002	16.96
8.0.6	0.003	0.003	16.96
8.0.5	0.004	0.004	16.82
8.0.3	0.008	0.010	17.25
8.0.2	0.012	0.011	17.40
8.0.1	0.005	0.002	17.09
8.0.0	0.007	0.010	16.64
7.4.33	0.000	0.006	15.02
7.4.32	0.004	0.004	16.64
7.4.30	0.000	0.006	16.58
7.4.29	0.003	0.003	16.55
7.4.28	0.004	0.004	16.51
7.4.27	0.003	0.003	16.52
7.4.26	0.003	0.003	16.54
7.4.25	0.000	0.007	16.48
7.4.24	0.004	0.004	16.60
7.4.23	0.000	0.007	16.52
7.4.22	0.003	0.014	16.52
7.4.21	0.000	0.015	16.59
7.4.20	0.007	0.000	16.61
7.4.16	0.009	0.009	16.41
7.4.15	0.020	0.003	17.40
7.4.14	0.010	0.008	17.86
7.4.13	0.008	0.011	16.65
7.4.12	0.014	0.002	16.59
7.4.11	0.010	0.007	16.40
7.4.10	0.014	0.009	16.46
7.4.9	0.003	0.014	16.59
7.4.8	0.006	0.010	19.39
7.4.7	0.010	0.014	16.37
7.4.6	0.006	0.010	16.54
7.4.5	0.006	0.000	16.27
7.4.4	0.016	0.008	16.51
7.4.3	0.009	0.013	16.54
7.4.0	0.004	0.011	15.08
7.3.33	0.000	0.007	13.06
7.3.32	0.000	0.005	13.03
7.3.31	0.000	0.007	16.31
7.3.30	0.000	0.006	16.13
7.3.29	0.008	0.008	16.31
7.3.28	0.008	0.010	16.25
7.3.27	0.015	0.009	17.40
7.3.26	0.014	0.004	16.22
7.3.25	0.013	0.006	16.42
7.3.24	0.014	0.007	16.59
7.3.23	0.009	0.012	16.43
7.3.21	0.006	0.012	16.45
7.3.20	0.013	0.009	19.39
7.3.19	0.012	0.006	16.44
7.3.18	0.006	0.009	16.45
7.3.17	0.006	0.010	16.36
7.3.16	0.013	0.009	16.48
7.3.1	0.011	0.007	16.35
7.3.0	0.013	0.006	16.39
7.2.33	0.012	0.004	16.39
7.2.32	0.007	0.010	16.32
7.2.31	0.009	0.009	16.68
7.2.30	0.009	0.006	16.58
7.2.29	0.011	0.011	16.46
7.2.13	0.009	0.006	16.50
7.2.12	0.018	0.005	16.73
7.2.11	0.018	0.009	16.77
7.2.10	0.021	0.004	16.70
7.2.9	0.020	0.017	16.43
7.2.8	0.025	0.005	16.75
7.2.7	0.029	0.005	16.79
7.2.6	0.036	0.005	16.75
7.2.5	0.025	0.005	16.73
7.2.4	0.023	0.007	16.71
7.2.3	0.027	0.007	16.67
7.2.2	0.023	0.005	16.60
7.2.1	0.023	0.010	16.71
7.2.0	0.013	0.004	16.57
7.1.25	0.012	0.012	15.62
7.1.20	0.000	0.011	15.71
7.1.7	0.003	0.006	17.03
7.1.6	0.003	0.018	19.32
7.1.5	0.027	0.008	34.49
7.1.0	0.010	0.070	22.48
7.0.20	0.000	0.007	16.72
7.0.14	0.003	0.073	21.97
7.0.6	0.003	0.087	20.03
7.0.5	0.017	0.067	17.82
7.0.4	0.000	0.057	20.27
7.0.3	0.057	0.047	20.00
7.0.2	0.017	0.080	19.98
7.0.1	0.010	0.083	20.33
7.0.0	0.000	0.043	20.29
5.6.28	0.013	0.063	21.11
5.6.21	0.003	0.047	20.79
5.6.20	0.013	0.047	18.19
5.6.19	0.010	0.050	20.77
5.6.18	0.020	0.037	20.41
5.6.17	0.033	0.067	20.50
5.6.16	0.007	0.040	20.51
5.6.15	0.000	0.080	18.12
5.6.14	0.003	0.043	18.18
5.6.13	0.003	0.053	18.21
5.6.12	0.010	0.080	20.94
5.6.11	0.003	0.087	21.02
5.6.10	0.000	0.067	20.91
5.6.9	0.003	0.087	21.15
5.6.8	0.007	0.080	20.49
5.6.7	0.393	0.037	20.50
5.5.35	0.033	0.070	20.45
5.5.34	0.000	0.043	17.96
5.5.33	0.003	0.040	20.36
5.5.32	0.033	0.077	20.32
5.5.31	0.023	0.050	20.24
5.5.30	0.003	0.087	17.91
5.5.29	0.000	0.093	17.98
5.5.28	0.010	0.080	21.00
5.5.27	0.007	0.083	20.79
5.5.26	0.020	0.073	20.89
5.5.25	0.010	0.073	20.57
5.5.24	0.020	0.073	20.18
5.4.45	0.050	0.063	19.48
5.4.44	0.077	0.047	19.41
5.4.43	0.017	0.053	19.60
5.4.42	0.023	0.070	19.63
5.4.41	0.010	0.057	19.00
5.4.40	0.017	0.053	19.15
5.4.39	0.007	0.063	18.99
5.4.38	0.023	0.047	19.26
5.4.37	0.007	0.060	19.13
5.4.36	0.017	0.063	19.19
5.4.35	0.077	0.053	19.28
5.4.34	0.004	0.036	12.00
5.4.32	0.007	0.049	12.48
5.4.31	0.007	0.036	12.48
5.4.30	0.005	0.037	12.48
5.4.29	0.007	0.037	12.48
5.4.28	0.005	0.036	12.38
5.4.27	0.004	0.044	12.38
5.4.26	0.007	0.042	12.38
5.4.25	0.004	0.039	12.38
5.4.24	0.005	0.037	12.38
5.4.23	0.011	0.036	12.37
5.4.22	0.007	0.037	12.37
5.4.21	0.006	0.035	12.37
5.4.20	0.008	0.037	12.37
5.4.19	0.008	0.036	12.36
5.4.18	0.005	0.038	12.36
5.4.17	0.006	0.042	12.38
5.4.16	0.007	0.034	12.38
5.4.15	0.005	0.036	12.37
5.4.14	0.008	0.046	12.05
5.4.13	0.003	0.037	12.04
5.4.12	0.006	0.035	12.00
5.4.11	0.004	0.039	12.00
5.4.10	0.004	0.038	12.00
5.4.9	0.008	0.034	12.00
5.4.8	0.010	0.033	12.00
5.4.7	0.005	0.039	11.99
5.4.6	0.005	0.035	11.99
5.4.5	0.006	0.036	11.99
5.4.4	0.005	0.035	11.98
5.4.3	0.009	0.039	11.97
5.4.2	0.006	0.038	11.98
5.4.1	0.008	0.039	11.98
5.4.0	0.006	0.035	11.46
5.3.29	0.006	0.038	12.80
5.3.28	0.003	0.040	12.71
5.3.27	0.006	0.043	12.73
5.3.26	0.005	0.040	12.71
5.3.25	0.010	0.033	12.72
5.3.24	0.005	0.038	12.72
5.3.23	0.008	0.038	12.71
5.3.22	0.007	0.036	12.68
5.3.21	0.007	0.037	12.68
5.3.20	0.005	0.037	12.68
5.3.19	0.005	0.046	12.68
5.3.18	0.005	0.044	12.67
5.3.17	0.006	0.037	12.66
5.3.16	0.004	0.038	12.67
5.3.15	0.006	0.040	12.67
5.3.14	0.006	0.039	12.66
5.3.13	0.008	0.036	12.66
5.3.12	0.004	0.040	12.66
5.3.11	0.007	0.042	12.66
5.3.10	0.007	0.043	12.12
5.3.9	0.006	0.038	12.11
5.3.8	0.004	0.039	12.10
5.3.7	0.007	0.035	12.09
5.3.6	0.004	0.038	12.08
5.3.5	0.004	0.038	12.03
5.3.4	0.010	0.040	12.03
5.3.3	0.004	0.036	11.98
5.3.2	0.011	0.032	11.77
5.3.1	0.007	0.037	11.73
5.3.0	0.010	0.037	11.72
5.2.17	0.007	0.037	9.23
5.2.16	0.005	0.034	9.23
5.2.15	0.004	0.035	9.23
5.2.14	0.007	0.034	9.23
5.2.13	0.006	0.033	9.20
5.2.12	0.005	0.028	9.19
5.2.11	0.007	0.027	9.20
5.2.10	0.003	0.030	9.20
5.2.9	0.005	0.031	9.20
5.2.8	0.007	0.034	9.19
5.2.7	0.004	0.030	9.19
5.2.6	0.003	0.031	9.14
5.2.5	0.003	0.031	9.12
5.2.4	0.005	0.028	9.09
5.2.3	0.005	0.031	9.06
5.2.2	0.003	0.032	9.05
5.2.1	0.004	0.029	8.97
5.2.0	0.004	0.032	8.83
5.1.6	0.005	0.026	8.11
5.1.5	0.004	0.024	8.10
5.1.4	0.003	0.025	8.07
5.1.3	0.003	0.027	8.43
5.1.2	0.005	0.028	8.45
5.1.1	0.004	0.026	8.18
5.1.0	0.003	0.026	8.18
5.0.5	0.006	0.018	6.66
5.0.4	0.004	0.018	6.51
5.0.3	0.003	0.031	6.33
5.0.2	0.003	0.020	6.29
5.0.1	0.001	0.022	6.28
5.0.0	0.003	0.035	6.27
4.4.9	0.003	0.022	4.78
4.4.8	0.004	0.016	4.76
4.4.7	0.004	0.014	4.75
4.4.6	0.005	0.015	4.75
4.4.5	0.001	0.017	4.77
4.4.4	0.003	0.026	4.71
4.4.3	0.001	0.018	4.76
4.4.2	0.004	0.014	4.84
4.4.1	0.001	0.017	4.85
4.4.0	0.002	0.029	4.76
4.3.11	0.002	0.016	4.67
4.3.10	0.003	0.014	4.67
4.3.9	0.002	0.015	4.63
4.3.8	0.002	0.025	4.59
4.3.7	0.000	0.017	4.63
4.3.6	0.003	0.014	4.63
4.3.5	0.005	0.013	4.63
4.3.4	0.002	0.025	4.54
4.3.3	0.003	0.015	3.32
4.3.2	0.001	0.017	3.29
4.3.1	0.004	0.014	3.26
4.3.0	0.010	0.017	6.99