3v4l.org

run code in 300+ PHP versions simultaneously
<?php $output = ""; $output['blah'] = array( ); var_dump($output);//"A" but why? 'blah' casts to 0, OK, but 'A'? //because: var_dump(((string)array() )[0]);

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)
8.3.70.0170.00018.35
8.3.60.0100.01018.30
8.3.50.0140.00318.08
8.3.40.0070.00718.67
8.3.30.0120.00318.67
8.3.20.0050.00318.79
8.3.10.0000.00721.78
8.3.00.0040.00423.50
8.2.190.0070.00718.49
8.2.180.0140.00716.88
8.2.170.0150.00022.96
8.2.160.0190.00319.24
8.2.150.0100.00025.66
8.2.140.0030.00524.66
8.2.130.0050.00326.16
8.2.120.0050.00320.85
8.2.110.0070.00322.08
8.2.100.0070.00717.71
8.2.90.0000.01017.88
8.2.80.0030.00617.97
8.2.70.0040.00417.80
8.2.60.0040.00418.16
8.2.50.0080.00018.10
8.2.40.0040.00420.61
8.2.30.0040.00420.61
8.2.20.0040.00417.92
8.2.10.0000.00818.01
8.2.00.0000.01018.05
8.1.280.0120.01225.92
8.1.270.0000.00820.00
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0060.00323.98
8.1.230.0100.00019.07
8.1.220.0030.00517.74
8.1.210.0040.00420.97
8.1.200.0030.00617.13
8.1.190.0080.00019.01
8.1.180.0060.00318.10
8.1.170.0050.00318.43
8.1.160.0000.00718.79
8.1.150.0000.00718.88
8.1.140.0000.00718.79
8.1.130.0030.00320.13
8.1.120.0040.00417.45
8.1.110.0000.00817.52
8.1.100.0070.00017.44
8.1.90.0000.00817.46
8.1.80.0000.00717.39
8.1.70.0040.00417.49
8.1.60.0040.00417.46
8.1.50.0040.00417.40
8.1.40.0000.01117.52
8.1.30.0050.00317.64
8.1.20.0040.00417.61
8.1.10.0040.00417.51
8.1.00.0050.00217.39
8.0.300.0070.00020.07
8.0.290.0000.00716.58
8.0.280.0040.00418.31
8.0.270.0000.00817.27
8.0.260.0000.00618.43
8.0.250.0060.00317.02
8.0.240.0030.00316.88
8.0.230.0030.00317.00
8.0.220.0050.00316.98
8.0.210.0070.00016.83
8.0.200.0070.00017.02
8.0.190.0000.00717.04
8.0.180.0040.00417.00
8.0.170.0050.00316.85
8.0.160.0000.00716.92
8.0.150.0000.01116.86
8.0.140.0040.00416.81
8.0.130.0000.00513.38
8.0.120.0040.00416.93
8.0.110.0050.00316.89
8.0.100.0000.00716.84
8.0.90.0040.00316.80
8.0.80.0050.01216.98
8.0.70.0080.00016.96
8.0.60.0000.00716.97
8.0.50.0000.00716.89
8.0.30.0070.01317.01
8.0.20.0140.00417.40
8.0.10.0040.00416.93
8.0.00.0030.01516.73
7.4.330.0000.00615.55
7.4.320.0070.00016.55
7.4.300.0030.00316.54
7.4.290.0040.00416.34
7.4.280.0000.00716.53
7.4.270.0000.00716.60
7.4.260.0000.00716.57
7.4.250.0040.00416.59
7.4.240.0070.00016.39
7.4.230.0000.00716.38
7.4.220.0040.00416.62
7.4.210.0130.00416.58
7.4.200.0040.00416.56
7.4.160.0090.00916.49
7.4.140.0080.01017.86
7.4.130.0130.00316.60
7.4.120.0100.00716.56
7.4.110.0060.01216.53
7.4.100.0120.00916.48
7.4.90.0100.01016.43
7.4.80.0120.00919.39
7.4.70.0120.00616.56
7.4.60.0120.00416.35
7.4.50.0030.01416.31
7.4.40.0130.00916.61
7.4.10.0060.01314.75
7.4.00.0070.01214.88
7.3.330.0000.00613.21
7.3.320.0000.00613.06
7.3.310.0030.00316.20
7.3.300.0000.00716.23
7.3.290.0000.00716.33
7.3.280.0060.00816.27
7.3.260.0080.01016.34
7.3.240.0120.00816.35
7.3.230.0100.00616.32
7.3.210.0070.01016.57
7.3.200.0170.00016.37
7.3.190.0060.00916.27
7.3.180.0140.00816.27
7.3.170.0040.01116.36
7.3.160.0080.01416.25
7.3.130.0030.01514.72
7.3.120.0070.01014.68
7.3.110.0040.01414.82
7.3.100.0090.00614.83
7.3.90.0030.01014.56
7.3.80.0080.00414.88
7.3.70.0000.01114.88
7.3.60.0030.01314.77
7.3.50.0040.00814.99
7.3.40.0060.00314.92
7.3.30.0080.00614.82
7.3.20.0090.00616.46
7.3.10.0090.00616.54
7.3.00.0050.00816.67
7.2.330.0160.01416.59
7.2.320.0030.01816.45
7.2.310.0090.00616.39
7.2.300.0090.00916.62
7.2.290.0030.01316.51
7.2.260.0070.01115.30
7.2.250.0100.01015.05
7.2.240.0070.01115.01
7.2.230.0070.00714.85
7.2.220.0060.00315.31
7.2.210.0040.00815.14
7.2.200.0090.00315.16
7.2.190.0060.00615.08
7.2.180.0070.00714.71
7.2.170.0000.01414.85
7.2.160.0100.00314.98
7.2.150.0080.00416.98
7.2.140.0040.00717.09
7.2.130.0050.00916.92
7.2.120.0060.00716.69
7.2.110.0080.00716.88
7.2.100.0660.00916.23
7.2.90.0850.00616.33
7.2.80.0670.00516.34
7.2.70.0850.01116.44
7.2.60.1030.00916.44
7.2.50.1370.00516.31
7.2.40.0870.00816.32
7.2.30.0840.00516.38
7.2.20.0900.00516.25
7.2.10.1100.00716.34
7.2.00.0920.01116.41
7.1.330.0080.00815.70
7.1.320.0040.00815.68
7.1.310.0060.00315.85
7.1.300.0000.01415.75
7.1.290.0070.00715.82
7.1.280.0040.01115.63
7.1.270.0000.01315.87
7.1.260.0060.00615.91
7.1.250.0090.00515.71
7.1.240.0130.00315.93
7.1.230.0100.00315.39
7.1.220.1620.00314.97
7.1.210.1490.00314.86
7.1.200.1460.00915.00
7.1.190.1820.00714.71
7.1.180.1540.00814.88
7.1.170.2200.01014.77
7.1.160.2070.00314.90
7.1.150.1760.00514.85
7.1.140.2460.00814.83
7.1.130.1970.01314.75
7.1.120.2140.00314.84
7.1.110.1880.00814.67
7.1.100.2390.00714.76
7.1.90.2000.01414.82
7.1.80.1720.00814.96
7.1.70.1780.00914.87
7.1.60.2080.01223.84
7.1.50.3140.00323.64
7.1.40.2990.01023.68
7.1.30.2820.01723.63
7.1.20.3450.00823.59
7.1.10.3830.00714.71
7.1.00.2060.00414.78
7.0.330.0000.01115.21
7.0.320.0140.00015.42
7.0.310.0030.00615.12
7.0.300.0070.00715.30
7.0.290.0060.00615.57
7.0.280.0070.00715.20
7.0.270.0040.01115.51
7.0.260.0030.00615.45
7.0.250.0060.00615.28
7.0.240.0060.00615.32
7.0.230.0030.01015.33
7.0.220.0070.00715.32
7.0.210.0060.01015.41
7.0.200.0030.00615.51
7.0.190.0080.00815.36
7.0.180.0070.00715.38
7.0.170.0000.00815.35
7.0.160.0110.00415.30
7.0.150.0070.00715.49
7.0.140.0030.01015.32
7.0.130.0000.00915.37
7.0.120.0080.00315.36
7.0.110.0000.01315.20
7.0.100.0090.00015.58
7.0.90.0000.01315.32
7.0.80.0050.00315.09
7.0.70.0040.01115.34
7.0.60.0110.00415.16
7.0.50.0000.01115.60
7.0.40.0060.00613.40
7.0.30.0080.00313.59
7.0.20.0000.01113.40
7.0.10.0100.00313.40
7.0.00.0060.01013.40
5.6.400.0090.00313.93
5.6.390.0100.00313.81
5.6.380.0060.00914.11
5.6.370.0090.00314.50
5.6.360.0070.00714.26
5.6.350.0030.01214.04
5.6.340.0100.00313.95
5.6.330.0000.00914.19
5.6.320.0060.00314.01
5.6.310.0000.01114.26
5.6.300.0060.00714.17
5.6.290.0040.00813.93
5.6.280.0070.00714.27
5.6.270.0030.01013.88
5.6.260.0040.00813.98
5.6.250.0100.00313.99
5.6.240.0070.00714.32
5.6.230.0040.00814.07
5.6.220.0100.00613.84
5.6.210.0060.00314.01
5.6.200.0060.00914.13
5.6.190.0040.00814.07
5.6.180.0070.00314.02
5.6.170.0110.00614.12
5.6.160.0060.00614.07
5.6.150.0100.00014.21
5.6.140.0030.00513.79
5.6.130.0070.00313.82
5.6.120.0100.00013.87
5.6.110.0130.00014.08
5.6.100.0030.00914.10
5.6.90.0080.00614.00
5.6.80.0000.00814.08
5.6.70.0060.00713.90
5.6.60.0070.00714.24
5.6.50.0000.01414.12
5.6.40.0000.01113.89
5.6.30.0070.00313.85
5.6.20.0060.00313.95
5.6.10.0040.01113.78
5.6.00.0110.00414.02

preferences:
48.32 ms | 401 KiB | 5 Q