Online PHP editor | perf for Ue1Qp

<?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	0.007	0.011	18.30
8.3.5	0.012	0.009	21.98
8.3.4	0.015	0.000	18.59
8.3.3	0.017	0.000	19.09
8.3.2	0.004	0.004	20.34
8.3.1	0.005	0.003	23.30
8.3.0	0.004	0.004	19.26
8.2.18	0.012	0.003	16.75
8.2.17	0.000	0.014	22.96
8.2.16	0.014	0.000	20.47
8.2.15	0.005	0.003	24.18
8.2.14	0.004	0.004	24.66
8.2.13	0.008	0.000	26.16
8.2.12	0.007	0.000	22.22
8.2.11	0.000	0.010	21.08
8.2.10	0.010	0.003	17.78
8.2.9	0.000	0.008	17.78
8.2.8	0.000	0.008	17.97
8.2.7	0.006	0.003	17.38
8.2.6	0.009	0.000	17.93
8.2.5	0.008	0.000	18.07
8.2.4	0.004	0.004	18.17
8.2.3	0.000	0.008	18.17
8.2.2	0.003	0.006	17.71
8.2.1	0.004	0.004	18.12
8.2.0	0.008	0.000	17.65
8.1.28	0.010	0.007	25.92
8.1.27	0.000	0.008	22.10
8.1.26	0.004	0.004	26.35
8.1.25	0.000	0.007	28.09
8.1.24	0.006	0.003	22.52
8.1.23	0.004	0.008	20.97
8.1.22	0.000	0.008	17.74
8.1.21	0.003	0.006	18.77
8.1.20	0.003	0.006	17.09
8.1.19	0.004	0.004	17.36
8.1.18	0.004	0.004	18.10
8.1.17	0.000	0.008	20.49
8.1.16	0.004	0.004	22.11
8.1.15	0.000	0.008	18.93
8.1.14	0.007	0.000	17.39
8.1.13	0.003	0.003	17.77
8.1.12	0.003	0.003	17.39
8.1.11	0.000	0.007	17.43
8.1.10	0.004	0.004	17.42
8.1.9	0.004	0.004	17.53
8.1.8	0.000	0.007	17.50
8.1.7	0.000	0.007	17.40
8.1.6	0.005	0.008	17.67
8.1.5	0.000	0.009	17.39
8.1.4	0.000	0.008	17.58
8.1.3	0.005	0.003	17.73
8.1.2	0.003	0.005	17.60
8.1.1	0.005	0.003	17.48
8.1.0	0.004	0.004	17.48
8.0.30	0.000	0.008	19.69
8.0.29	0.000	0.007	16.75
8.0.28	0.003	0.003	18.47
8.0.27	0.000	0.008	17.35
8.0.26	0.006	0.000	17.29
8.0.25	0.000	0.007	16.87
8.0.24	0.008	0.000	16.89
8.0.23	0.002	0.005	16.93
8.0.22	0.005	0.003	16.98
8.0.21	0.003	0.003	16.96
8.0.20	0.006	0.000	17.00
8.0.19	0.005	0.003	16.86
8.0.18	0.000	0.008	16.89
8.0.17	0.000	0.008	16.83
8.0.16	0.000	0.007	16.93
8.0.15	0.004	0.004	16.89
8.0.14	0.004	0.004	16.93
8.0.13	0.000	0.005	13.34
8.0.12	0.000	0.008	16.95
8.0.11	0.000	0.007	16.99
8.0.10	0.004	0.004	16.96
8.0.9	0.007	0.000	16.79
8.0.8	0.003	0.013	16.90
8.0.7	0.007	0.000	16.87
8.0.6	0.004	0.004	16.75
8.0.5	0.002	0.005	16.79
8.0.3	0.012	0.010	16.94
8.0.2	0.009	0.014	17.40
8.0.1	0.000	0.008	17.09
8.0.0	0.013	0.005	16.76
7.4.33	0.000	0.007	15.02
7.4.32	0.006	0.000	16.64
7.4.30	0.000	0.006	16.61
7.4.29	0.005	0.003	16.68
7.4.28	0.000	0.007	16.53
7.4.27	0.003	0.003	16.44
7.4.26	0.007	0.000	16.61
7.4.25	0.000	0.007	16.48
7.4.24	0.002	0.005	16.61
7.4.23	0.004	0.004	16.65
7.4.22	0.007	0.010	16.41
7.4.21	0.011	0.003	16.58
7.4.20	0.000	0.007	16.52
7.4.16	0.008	0.008	16.36
7.4.15	0.011	0.014	17.40
7.4.14	0.012	0.008	17.86
7.4.13	0.012	0.005	16.40
7.4.12	0.007	0.010	16.58
7.4.11	0.006	0.011	16.69
7.4.10	0.017	0.006	16.44
7.4.9	0.013	0.004	16.44
7.4.8	0.009	0.006	19.39
7.4.7	0.012	0.012	16.56
7.4.6	0.010	0.007	16.48
7.4.5	0.000	0.008	16.35
7.4.4	0.000	0.018	16.40
7.4.3	0.007	0.010	16.55
7.4.0	0.005	0.014	14.96
7.3.33	0.000	0.008	12.96
7.3.32	0.006	0.000	13.14
7.3.31	0.000	0.007	16.29
7.3.30	0.000	0.006	16.27
7.3.29	0.006	0.009	16.24
7.3.28	0.002	0.016	16.23
7.3.27	0.018	0.006	17.40
7.3.26	0.008	0.011	16.25
7.3.25	0.015	0.005	16.39
7.3.24	0.006	0.014	16.44
7.3.23	0.006	0.012	16.59
7.3.21	0.007	0.010	16.43
7.3.20	0.010	0.006	19.39
7.3.19	0.009	0.009	16.34
7.3.18	0.009	0.006	16.55
7.3.17	0.013	0.002	16.43
7.3.16	0.007	0.010	16.59
7.3.12	0.007	0.011	14.95
7.3.11	0.015	0.006	14.90
7.3.10	0.004	0.011	14.59
7.3.9	0.007	0.007	14.56
7.3.8	0.015	0.003	14.88
7.3.7	0.003	0.007	14.91
7.3.6	0.003	0.010	14.72
7.3.5	0.006	0.003	14.84
7.3.4	0.007	0.007	14.79
7.3.3	0.000	0.011	14.76
7.3.2	0.006	0.006	16.66
7.3.1	0.000	0.009	16.27
7.3.0	0.007	0.010	16.42
7.2.33	0.003	0.013	16.62
7.2.32	0.010	0.013	16.60
7.2.31	0.007	0.016	16.61
7.2.30	0.012	0.004	16.43
7.2.29	0.011	0.011	16.42
7.2.25	0.010	0.010	14.97
7.2.24	0.004	0.015	14.95
7.2.23	0.003	0.013	15.02
7.2.22	0.000	0.014	15.22
7.2.21	0.004	0.007	14.98
7.2.20	0.004	0.008	14.92
7.2.19	0.004	0.012	15.00
7.2.18	0.009	0.009	14.89
7.2.17	0.011	0.007	14.77
7.2.16	0.010	0.003	14.79
7.2.15	0.004	0.011	16.79
7.2.14	0.000	0.014	16.72
7.2.13	0.007	0.007	16.57
7.2.12	0.003	0.010	16.88
7.2.11	0.008	0.003	16.78
7.2.10	0.006	0.003	16.81
7.2.9	0.004	0.007	16.96
7.2.8	0.003	0.009	16.59
7.2.7	0.010	0.006	16.99
7.2.6	0.009	0.005	16.70
7.2.5	0.003	0.010	16.85
7.2.4	0.003	0.010	16.96
7.2.3	0.003	0.010	16.59
7.2.2	0.004	0.012	16.91
7.2.1	0.006	0.006	16.94
7.2.0	0.007	0.007	16.86
7.1.33	0.003	0.007	15.97
7.1.32	0.004	0.014	15.92
7.1.31	0.007	0.010	15.92
7.1.30	0.003	0.005	15.91
7.1.29	0.009	0.006	15.91
7.1.28	0.003	0.007	15.72
7.1.27	0.005	0.003	15.84
7.1.26	0.006	0.008	15.78
7.1.25	0.010	0.007	15.78
7.1.24	0.003	0.010	15.47
7.1.23	0.012	0.004	15.89
7.1.22	0.006	0.009	15.59
7.1.21	0.003	0.007	15.99
7.1.20	0.007	0.004	15.67
7.1.19	0.006	0.003	15.80
7.1.18	0.000	0.012	15.77
7.1.17	0.004	0.011	15.80
7.1.16	0.005	0.005	15.91
7.1.15	0.003	0.010	15.78
7.1.14	0.003	0.006	15.54
7.1.13	0.000	0.008	15.80
7.1.12	0.006	0.006	15.86
7.1.11	0.003	0.005	15.65
7.1.10	0.000	0.011	15.82
7.1.9	0.008	0.004	15.72
7.1.8	0.007	0.003	15.58
7.1.7	0.003	0.008	16.49
7.1.6	0.006	0.011	17.47
7.1.5	0.013	0.009	25.09
7.1.4	0.004	0.011	15.82
7.1.3	0.004	0.004	15.89
7.1.2	0.003	0.006	15.73
7.1.1	0.012	0.003	15.87
7.1.0	0.011	0.035	19.02
7.0.33	0.003	0.010	15.32
7.0.32	0.011	0.004	15.58
7.0.31	0.007	0.007	15.33
7.0.30	0.006	0.003	15.21
7.0.29	0.003	0.010	15.23
7.0.28	0.003	0.006	15.33
7.0.27	0.004	0.011	15.35
7.0.26	0.000	0.009	15.32
7.0.25	0.008	0.000	15.57
7.0.24	0.006	0.006	15.33
7.0.23	0.004	0.010	15.41
7.0.22	0.000	0.014	15.51
7.0.21	0.010	0.003	15.13
7.0.20	0.009	0.002	16.03
7.0.19	0.003	0.006	15.32
7.0.18	0.003	0.009	15.34
7.0.17	0.009	0.003	15.24
7.0.16	0.000	0.010	15.48
7.0.15	0.006	0.009	15.31
7.0.14	0.007	0.040	18.70
7.0.13	0.007	0.003	15.30
7.0.12	0.006	0.006	15.23
7.0.11	0.003	0.009	15.33
7.0.10	0.000	0.008	15.32
7.0.9	0.004	0.007	15.39
7.0.8	0.003	0.006	15.08
7.0.7	0.003	0.013	15.46
7.0.6	0.007	0.044	17.63
7.0.5	0.010	0.043	16.55
7.0.4	0.009	0.021	16.75
7.0.3	0.019	0.035	16.78
7.0.2	0.017	0.045	16.78
7.0.1	0.005	0.036	16.69
7.0.0	0.006	0.023	16.66
5.6.40	0.006	0.006	14.08
5.6.39	0.003	0.006	14.26
5.6.38	0.008	0.008	14.03
5.6.37	0.010	0.003	14.19
5.6.36	0.007	0.007	14.18
5.6.35	0.007	0.007	14.42
5.6.34	0.008	0.004	14.27
5.6.33	0.000	0.014	14.65
5.6.32	0.003	0.007	14.25
5.6.31	0.006	0.003	14.43
5.6.30	0.010	0.007	13.80
5.6.29	0.000	0.017	14.44
5.6.28	0.010	0.035	17.82
5.6.27	0.006	0.003	14.27
5.6.26	0.009	0.004	14.37
5.6.25	0.004	0.011	14.53
5.6.24	0.003	0.010	14.22
5.6.23	0.010	0.004	14.21
5.6.22	0.014	0.003	14.23
5.6.21	0.003	0.023	17.54
5.6.20	0.007	0.023	16.25
5.6.19	0.008	0.044	17.31
5.6.18	0.011	0.024	17.55
5.6.17	0.016	0.044	17.42
5.6.16	0.008	0.025	17.42
5.6.15	0.007	0.042	16.26
5.6.14	0.007	0.042	16.21
5.6.13	0.006	0.041	16.24
5.6.12	0.005	0.048	17.75
5.6.11	0.005	0.025	17.48
5.6.10	0.008	0.048	17.58
5.6.9	0.020	0.035	17.68
5.6.8	0.007	0.044	17.36
5.6.7	0.209	0.024	17.35
5.6.6	0.004	0.014	14.36
5.6.5	0.003	0.008	14.17
5.6.4	0.011	0.004	14.31
5.6.3	0.003	0.009	14.53
5.6.2	0.006	0.006	14.05
5.6.1	0.003	0.009	14.43
5.6.0	0.003	0.006	13.86
5.5.38	0.004	0.007	14.21
5.5.37	0.006	0.013	14.28
5.5.36	0.012	0.003	14.21
5.5.35	0.023	0.037	17.45
5.5.34	0.002	0.024	15.89
5.5.33	0.000	0.029	17.43
5.5.32	0.017	0.030	17.23
5.5.31	0.018	0.023	17.18
5.5.30	0.006	0.021	15.99
5.5.29	0.011	0.041	16.01
5.5.28	0.007	0.048	17.54
5.5.27	0.007	0.037	17.71
5.5.26	0.013	0.041	17.45
5.5.25	0.005	0.025	17.45
5.5.24	0.016	0.036	17.15
5.5.23	0.014	0.000	14.09
5.5.22	0.003	0.010	14.46
5.5.21	0.003	0.009	14.29
5.5.20	0.003	0.009	14.26
5.5.19	0.006	0.006	14.07
5.5.18	0.003	0.010	14.00
5.5.17	0.006	0.006	14.02
5.5.16	0.007	0.007	14.28
5.5.15	0.007	0.007	14.24
5.5.14	0.004	0.004	13.77
5.5.13	0.010	0.003	13.94
5.5.12	0.005	0.006	13.83
5.5.11	0.004	0.008	13.88
5.5.10	0.003	0.009	14.07
5.5.9	0.009	0.006	13.99
5.5.8	0.000	0.010	14.08
5.5.7	0.012	0.003	14.30
5.5.6	0.000	0.015	14.16
5.5.5	0.000	0.011	14.27
5.5.4	0.004	0.011	13.95
5.5.3	0.007	0.003	14.24
5.5.2	0.003	0.010	14.32
5.5.1	0.006	0.003	14.25
5.5.0	0.004	0.011	13.91
5.4.45	0.042	0.030	15.16
5.4.44	0.050	0.023	15.28
5.4.43	0.045	0.032	15.17
5.4.42	0.039	0.032	15.26
5.4.41	0.053	0.039	14.93
5.4.40	0.018	0.026	14.90
5.4.39	0.041	0.030	14.94
5.4.38	0.056	0.031	15.17
5.4.37	0.038	0.023	15.07
5.4.36	0.049	0.027	15.11
5.4.35	0.042	0.032	14.92
5.4.34	0.006	0.019	11.53
5.4.33	0.004	0.008	10.63
5.4.32	0.008	0.022	11.65
5.4.31	0.003	0.024	11.67
5.4.30	0.004	0.021	11.60
5.4.29	0.004	0.023	11.70
5.4.28	0.005	0.022	11.39
5.4.27	0.002	0.023	11.62
5.4.26	0.003	0.023	11.60
5.4.25	0.006	0.019	11.45
5.4.24	0.006	0.022	11.67
5.4.23	0.005	0.023	11.58
5.4.22	0.003	0.026	11.50
5.4.21	0.004	0.022	11.60
5.4.20	0.003	0.026	11.62
5.4.19	0.007	0.019	11.63
5.4.18	0.005	0.021	11.49
5.4.17	0.007	0.020	11.36
5.4.16	0.004	0.028	11.34
5.4.15	0.005	0.023	11.42
5.4.14	0.007	0.024	11.39
5.4.13	0.002	0.021	11.40
5.4.12	0.002	0.024	11.59
5.4.11	0.006	0.021	11.48
5.4.10	0.007	0.021	11.41
5.4.9	0.006	0.020	11.41
5.4.8	0.007	0.023	11.46
5.4.7	0.008	0.020	11.32
5.4.6	0.007	0.022	11.44
5.4.5	0.006	0.021	11.46
5.4.4	0.003	0.026	11.48
5.4.3	0.005	0.019	11.38
5.4.2	0.006	0.019	11.43
5.4.1	0.004	0.022	11.48
5.4.0	0.005	0.019	11.14
5.3.29	0.008	0.037	12.80
5.3.28	0.007	0.037	12.71
5.3.27	0.007	0.054	12.73
5.3.26	0.006	0.039	12.72
5.3.25	0.009	0.038	12.71
5.3.24	0.006	0.038	12.72
5.3.23	0.007	0.037	12.71
5.3.22	0.003	0.041	12.68
5.3.21	0.008	0.039	12.68
5.3.20	0.007	0.036	12.68
5.3.19	0.005	0.040	12.67
5.3.18	0.006	0.037	12.68
5.3.17	0.004	0.038	12.66
5.3.16	0.005	0.038	12.67
5.3.15	0.006	0.036	12.67
5.3.14	0.010	0.035	12.66
5.3.13	0.008	0.037	12.66
5.3.12	0.007	0.039	12.66
5.3.11	0.005	0.039	12.66
5.3.10	0.006	0.037	12.12
5.3.9	0.007	0.035	12.10
5.3.8	0.005	0.037	12.09
5.3.7	0.005	0.038	12.09
5.3.6	0.004	0.037	12.07
5.3.5	0.005	0.037	12.02
5.3.4	0.005	0.040	12.02
5.3.3	0.005	0.042	11.98
5.3.2	0.004	0.040	11.76
5.3.1	0.006	0.034	11.73
5.3.0	0.007	0.035	11.71
5.2.17	0.003	0.032	9.23
5.2.16	0.005	0.032	9.23
5.2.15	0.004	0.031	9.23
5.2.14	0.004	0.031	9.23
5.2.13	0.004	0.028	9.19
5.2.12	0.008	0.031	9.19
5.2.11	0.007	0.029	9.19
5.2.10	0.005	0.027	9.18
5.2.9	0.005	0.028	9.18
5.2.8	0.005	0.032	9.18
5.2.7	0.005	0.030	9.18
5.2.6	0.005	0.033	9.14
5.2.5	0.006	0.029	9.11
5.2.4	0.004	0.029	9.08
5.2.3	0.005	0.027	9.05
5.2.2	0.003	0.029	9.04
5.2.1	0.003	0.028	8.96
5.2.0	0.004	0.029	8.82
5.1.6	0.005	0.022	8.10
5.1.5	0.006	0.030	8.10
5.1.4	0.004	0.030	8.07
5.1.3	0.005	0.025	8.42
5.1.2	0.002	0.029	8.45
5.1.1	0.008	0.025	8.17
5.1.0	0.003	0.027	8.18
5.0.5	0.001	0.026	6.65
5.0.4	0.004	0.018	6.51
5.0.3	0.004	0.039	6.33
5.0.2	0.002	0.020	6.29
5.0.1	0.005	0.018	6.27
5.0.0	0.003	0.030	6.27
4.4.9	0.001	0.017	4.78
4.4.8	0.003	0.015	4.76
4.4.7	0.002	0.016	4.75
4.4.6	0.004	0.014	4.75
4.4.5	0.002	0.015	4.77
4.4.4	0.002	0.025	4.71
4.4.3	0.002	0.016	4.76
4.4.2	0.003	0.015	4.84
4.4.1	0.005	0.013	4.85
4.4.0	0.005	0.029	4.76
4.3.11	0.002	0.016	4.67
4.3.10	0.004	0.014	4.66
4.3.9	0.002	0.015	4.64
4.3.8	0.003	0.024	4.58
4.3.7	0.002	0.019	4.63
4.3.6	0.003	0.015	4.63
4.3.5	0.002	0.016	4.63
4.3.4	0.006	0.022	4.54
4.3.3	0.002	0.016	3.31
4.3.2	0.002	0.016	3.29
4.3.1	0.001	0.018	3.25
4.3.0	0.003	0.027	6.99