3v4l.org

run code in 300+ PHP versions simultaneously
<?php function test() { $o1 = new stdClass; debug_zval_dump($o1); $o2 = new stdClass; $o2_copy = $o2; debug_zval_dump($o2_copy); $o3 = new stdClass; $o3_ref =& $o3; debug_zval_dump($o3_ref); $a1 = array(); $a1[] = 1; debug_zval_dump($a1); $a2 = array(); $a2[] = 2; $a2_copy = $a2; debug_zval_dump($a2_copy); $a3 = array(); $a3[] = 3; $a3_ref =& $a3; debug_zval_dump($a3_ref); $s1 = 'Hello'; $s1 .= ' World 1'; debug_zval_dump($s1); $s2 = 'Hello'; $s2 .= ' World 2'; $s2_copy = $s2; debug_zval_dump($s2_copy); $s3 = 'Hello'; $s3 .= ' World 3'; $s3_ref =& $s3; debug_zval_dump($s3_ref); $i1 = 1; debug_zval_dump($i1); $i2 = 2; $i2_copy = $i2; debug_zval_dump($i2_copy); $i3 = 3; $i3_ref =& $i3; debug_zval_dump($i3_ref); } test();

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).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.60.0090.00918.30
8.3.50.0130.00716.29
8.3.40.0040.01118.70
8.3.30.0070.00718.45
8.3.20.0030.00624.18
8.3.10.0040.00424.66
8.3.00.0090.00026.16
8.2.180.0060.00925.92
8.2.170.0070.00718.67
8.2.160.0100.00322.96
8.2.150.0080.00025.66
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0040.00419.64
8.2.110.0090.00019.17
8.2.100.0090.00317.91
8.2.90.0000.00817.75
8.2.80.0000.00818.78
8.2.70.0060.00317.50
8.2.60.0060.00318.03
8.2.50.0050.00318.05
8.2.40.0000.00718.16
8.2.30.0070.00018.09
8.2.20.0000.00718.01
8.2.10.0050.00319.35
8.2.00.0000.00819.16
8.1.280.0070.00725.92
8.1.270.0000.00923.99
8.1.260.0040.00426.35
8.1.250.0050.00228.09
8.1.240.0060.00321.95
8.1.230.0080.00320.85
8.1.220.0080.00017.74
8.1.210.0080.00018.77
8.1.200.0030.00717.13
8.1.190.0000.00816.98
8.1.180.0080.00018.10
8.1.170.0000.00920.57
8.1.160.0050.00318.78
8.1.150.0050.00318.80
8.1.140.0000.00818.72
8.1.130.0000.00720.03
8.1.120.0050.00317.49
8.1.110.0030.00617.45
8.1.100.0000.00717.46
8.1.90.0040.00417.32
8.1.80.0030.00417.36
8.1.70.0000.00717.35
8.1.60.0050.00317.52
8.1.50.0040.00417.46
8.1.40.0030.00517.47
8.1.30.0040.00417.58
8.1.20.0000.00817.51
8.1.10.0040.00417.64
8.1.00.0040.00417.39
8.0.300.0000.00818.77
8.0.290.0040.00416.58
8.0.280.0000.00718.41
8.0.270.0030.00317.86
8.0.260.0000.00618.50
8.0.250.0080.00016.83
8.0.240.0050.00316.82
8.0.230.0000.00716.91
8.0.220.0050.00316.88
8.0.210.0000.00716.77
8.0.200.0030.00316.81
8.0.190.0020.00516.94
8.0.180.0000.00816.77
8.0.170.0030.00516.74
8.0.160.0050.00316.88
8.0.150.0030.00516.88
8.0.140.0040.00416.75
8.0.130.0000.00513.36
8.0.120.0000.00816.72
8.0.110.0070.00016.73
8.0.100.0000.00716.84
8.0.90.0070.00016.97
8.0.80.0090.01116.78
8.0.70.0000.00716.85
8.0.60.0000.00816.68
8.0.50.0070.00016.89
8.0.30.0140.00316.97
8.0.20.0120.00617.29
8.0.10.0120.00617.13
8.0.00.0050.01416.85
7.4.330.0000.00615.55
7.4.320.0000.00716.43
7.4.300.0030.00316.53
7.4.290.0100.00016.59
7.4.280.0030.00516.52
7.4.270.0030.00616.52
7.4.260.0030.00313.36
7.4.250.0090.00016.36
7.4.240.0000.00716.64
7.4.230.0070.00016.73
7.4.220.0020.00516.68
7.4.210.0070.00816.62
7.4.200.0040.00416.38
7.4.140.0070.01016.40
7.4.130.0030.01716.22
7.4.120.0090.01016.26
7.4.110.0080.01316.48
7.4.100.0190.00016.39
7.4.90.0110.00716.40
7.4.80.0080.01216.61
7.4.70.0150.00716.56
7.4.60.0120.01216.57
7.4.50.0070.01216.56
7.4.40.0030.01916.53
7.4.30.0100.00716.25
7.4.20.0140.00316.36
7.4.10.0080.01516.52
7.4.00.0120.00616.33
7.3.330.0030.00316.41
7.3.320.0000.00613.14
7.3.310.0040.00416.38
7.3.300.0060.00016.34
7.3.290.0080.00616.33
7.3.260.0120.00916.30
7.3.250.0030.01716.45
7.3.240.0070.01516.34
7.3.230.0090.01516.35
7.3.220.0110.00716.36
7.3.210.0030.01416.49
7.3.200.0130.00616.26
7.3.190.0110.01116.48
7.3.180.0150.00316.61
7.3.170.0040.01516.59
7.3.160.0120.00616.44
7.3.150.0080.01116.35
7.3.140.0100.01416.60
7.3.130.0130.01016.43
7.3.120.0150.00316.58
7.3.110.0110.00716.13
7.3.100.0060.01216.58
7.3.90.0160.00316.45
7.3.80.0110.00716.31
7.3.70.0060.01216.25
7.3.60.0130.00916.48
7.3.50.0060.01216.49
7.3.40.0070.01016.41
7.3.30.0150.00516.26
7.3.20.0180.00916.39
7.3.10.0220.02216.47
7.3.00.0390.00616.36
7.2.340.0380.00716.41
7.2.330.0310.00716.52
7.2.320.0240.01016.73
7.2.310.0290.00416.73
7.2.300.0300.00316.71
7.2.290.0250.00816.64
7.2.280.0280.00416.70
7.2.270.0140.01816.55
7.2.260.0240.00716.36
7.2.250.0250.00616.68
7.2.240.0230.00916.69
7.2.230.0200.01216.68
7.2.220.0200.01016.48
7.2.210.0320.01416.45
7.2.200.0290.00516.73
7.2.190.0310.01016.60
7.2.180.0300.00916.59
7.2.170.0330.01316.56
7.2.160.0260.01216.57
7.2.150.0270.00716.69
7.2.140.0390.00616.62
7.2.130.0290.01616.60
7.2.120.0310.01516.81
7.2.110.0310.01216.70
7.2.100.0230.01616.75
7.2.90.0330.00716.61
7.2.80.0320.00516.62
7.2.70.0210.02516.49
7.2.60.0190.01516.54
7.2.50.0600.00716.54
7.2.40.0250.01116.75
7.2.30.0440.01016.77
7.2.20.0170.01716.59
7.2.10.0290.00616.58
7.2.00.0240.01816.65
7.1.330.0230.00615.55
7.1.320.0290.00015.75
7.1.310.0180.01415.64
7.1.300.0190.01515.63
7.1.290.0300.00615.75
7.1.280.0300.01015.76
7.1.270.0320.00315.65
7.1.260.0310.00915.63
7.1.250.0280.00915.56
7.1.240.1040.00715.57
7.1.230.0180.01415.59
7.1.220.0240.01315.66
7.1.210.0320.00315.55
7.1.200.0240.00615.77
7.1.190.0300.00615.55
7.1.180.0180.01515.51
7.1.170.0200.01215.49
7.1.160.0200.01215.52
7.1.150.0190.01015.48
7.1.140.0310.00615.55
7.1.130.0210.01315.48
7.1.120.0260.01115.55
7.1.110.0270.00715.66
7.1.100.0260.01215.41
7.1.90.0260.00415.58
7.1.80.0310.00015.59
7.1.70.0280.00315.50
7.1.60.0190.01415.59
7.1.50.0230.01015.65
7.1.40.0170.01715.66
7.1.30.0360.01815.73
7.1.20.0260.00515.74
7.1.10.0210.00915.64
7.1.00.0320.00315.58
7.0.330.0530.00815.26
7.0.320.0490.00415.30
7.0.310.0210.01115.29
7.0.300.0200.01215.25
7.0.290.0170.01415.43
7.0.280.0290.00515.27
7.0.270.0190.01615.40
7.0.260.0230.00615.27
7.0.250.0230.01315.41
7.0.240.0210.01115.40
7.0.230.0160.01115.33
7.0.220.0290.00815.32
7.0.210.0600.00415.25
7.0.200.0250.00715.37
7.0.190.0230.00815.28
7.0.180.0310.00715.15
7.0.170.0250.01215.40
7.0.160.0310.00015.44
7.0.150.0210.00815.27
7.0.140.0180.01115.39
7.0.130.0210.00615.39
7.0.120.0260.00315.32
7.0.110.0240.00415.12
7.0.100.0290.00715.34
7.0.90.0220.00615.21
7.0.80.0520.00615.18
7.0.70.0210.00715.23
7.0.60.0260.00415.46
7.0.50.0220.00915.21
7.0.40.0170.01015.12
7.0.30.0250.00315.21
7.0.20.0110.01715.16
7.0.10.0220.00715.18
7.0.00.0170.01115.29
5.6.400.0250.01815.91
5.6.390.0290.01416.00
5.6.380.0200.02016.19
5.6.370.0260.01316.17
5.6.360.0140.02016.21
5.6.350.0170.01616.16
5.6.340.0230.01116.21
5.6.330.0170.01216.26
5.6.320.0250.01416.09
5.6.310.0220.01616.15
5.6.300.0270.00715.83
5.6.290.0240.01816.07
5.6.280.0230.00815.91
5.6.270.0310.01115.93
5.6.260.0220.00716.25
5.6.250.0150.01516.13
5.6.240.0160.01616.18
5.6.230.0190.01915.77
5.6.220.0280.00716.08
5.6.210.0330.01115.95
5.6.200.0220.01416.05
5.6.190.0250.00516.30
5.6.180.0160.01615.96
5.6.170.0210.00816.01
5.6.160.0290.00916.05
5.6.150.0160.01616.15
5.6.140.0210.01315.91
5.6.130.0190.01215.91
5.6.120.0220.00916.11
5.6.110.0180.01516.12
5.6.100.0130.01715.85
5.6.90.0250.00915.93
5.6.80.0220.01916.15
5.6.70.0270.00415.88
5.6.60.0290.00415.92
5.6.50.0150.01615.76
5.6.40.0230.00815.87
5.6.30.0160.01616.00
5.6.20.0250.00915.88
5.6.10.0250.01015.87
5.6.00.0180.01115.97
5.5.380.0190.01116.05
5.5.370.0190.01515.76
5.5.360.0160.01915.86
5.5.350.0150.01515.97
5.5.340.0150.01515.85
5.5.330.0190.01215.89
5.5.320.0190.01115.89
5.5.310.0170.01215.80
5.5.300.0230.00916.04
5.5.290.0130.01616.06
5.5.280.0230.00815.86
5.5.270.0200.01016.04
5.5.260.0280.01016.05
5.5.250.0210.01115.78
5.5.240.0110.01815.80
5.5.230.0220.00715.90
5.5.220.0180.01615.95
5.5.210.0240.00515.85
5.5.200.0290.00815.92
5.5.190.0130.01616.03
5.5.180.0280.01015.95
5.5.170.0220.01115.90
5.5.160.0130.02015.86
5.5.150.0260.00415.93
5.5.140.0290.00316.02
5.5.130.0280.00815.94
5.5.120.0330.01015.84
5.5.110.0240.01215.84
5.5.100.0200.01315.68
5.5.90.0220.00715.79
5.5.80.0230.01516.05
5.5.70.0130.02615.95
5.5.60.0180.01515.84
5.5.50.0230.00715.76
5.5.40.0240.00915.93
5.5.30.0260.00515.84
5.5.20.0220.00815.68
5.5.10.0190.01915.86
5.5.00.0180.01815.75
5.4.450.0210.00912.81
5.4.440.0210.00712.56
5.4.430.0120.01212.76
5.4.420.0200.00812.79
5.4.410.0130.01012.68
5.4.400.0230.00412.51
5.4.390.0130.01312.72
5.4.380.0140.01012.68
5.4.370.0110.01412.88
5.4.360.0230.00312.60
5.4.350.0200.00812.50
5.4.340.0210.01012.74
5.4.330.0200.00312.93
5.4.320.0120.01212.48
5.4.310.0140.00812.63
5.4.300.0180.00912.61
5.4.290.0180.01212.73
5.4.280.0190.01112.80
5.4.270.0230.00712.84
5.4.260.0160.00712.53
5.4.250.0190.00512.82
5.4.240.0200.01012.65
5.4.230.0240.00712.68
5.4.220.0200.00612.70
5.4.210.0210.00312.58
5.4.200.0190.01012.50
5.4.190.0110.01112.54
5.4.180.0210.00312.80
5.4.170.0160.00712.68
5.4.160.0130.01312.67
5.4.150.0260.00312.75
5.4.140.0190.00912.55
5.4.130.0100.01412.98
5.4.120.0370.00012.89
5.4.110.0180.00912.90
5.4.100.0130.01012.88
5.4.90.0080.01512.64
5.4.80.0230.01012.69
5.4.70.0130.01112.68
5.4.60.0170.00912.89
5.4.50.0170.00812.59
5.4.40.0130.01412.75
5.4.30.0200.00313.00
5.4.20.0230.00812.89
5.4.10.0200.00712.57
5.4.00.0100.01712.55
5.3.290.0150.01013.22
5.3.280.0240.00513.10
5.3.270.0130.01313.12
5.3.260.0140.01013.12
5.3.250.0180.01213.16
5.3.240.0170.00713.11
5.3.230.0130.00913.20
5.3.220.0130.01012.91
5.3.210.0170.01413.00
5.3.200.0180.01112.86
5.3.190.0170.00913.00
5.3.180.0110.01513.10
5.3.170.0230.00413.16
5.3.160.0180.01113.23
5.3.150.0180.00713.09
5.3.140.0140.01713.06
5.3.130.0150.01013.05
5.3.120.0170.01313.09
5.3.110.0190.01013.16
5.3.100.0260.00313.07
5.3.90.0140.01413.24
5.3.80.0150.00812.84
5.3.70.0200.00613.01
5.3.60.0160.01312.97
5.3.50.0100.01713.04
5.3.40.0190.01113.05
5.3.30.0200.00712.92
5.3.20.0120.01212.89
5.3.10.0200.00312.68
5.3.00.0190.00312.70
5.2.170.0110.01112.16
5.2.160.0150.00712.16
5.2.150.0090.01312.17
5.2.140.0150.01512.16
5.2.130.0160.00512.16
5.2.120.0100.01012.16
5.2.110.0110.00712.16
5.2.100.0180.00512.16
5.2.90.0140.00612.16
5.2.80.0190.00812.16
5.2.70.0150.00412.16
5.2.60.0130.00612.16
5.2.50.0130.00512.16
5.2.40.0160.00312.16
5.2.30.0160.00512.16
5.2.20.0120.01212.16
5.2.10.0120.00612.16
5.2.00.0160.00512.16
5.1.60.0190.00512.16
5.1.50.0130.00612.16
5.1.40.0040.01312.16
5.1.30.0160.00412.16
5.1.20.0130.01012.16
5.1.10.0090.01212.16
5.1.00.0140.00712.16
5.0.50.0090.00912.16
5.0.40.0060.01112.16
5.0.30.0090.00912.16
5.0.20.0080.00912.16
5.0.10.0110.00512.16
5.0.00.0150.00012.16
4.4.90.0040.00812.16
4.4.80.0070.00312.16
4.4.70.0060.00312.16
4.4.60.0000.00912.16
4.4.50.0060.00312.16
4.4.40.0080.00412.16
4.4.30.0050.00512.16
4.4.20.0050.00512.16
4.4.10.0100.00012.16
4.4.00.0130.00012.16
4.3.110.0040.00412.16
4.3.100.0090.00212.16
4.3.90.0070.00312.16
4.3.80.0100.00012.16
4.3.70.0080.00412.16
4.3.60.0080.00512.16
4.3.50.0060.00412.16
4.3.40.0050.00512.16
4.3.30.0080.00012.16
4.3.20.0040.00412.16
4.3.10.0020.00512.16
4.3.00.0080.00012.16

preferences:
34.48 ms | 400 KiB | 5 Q