3v4l.org

run code in 300+ PHP versions simultaneously
<?php define('foo', 'bar'); $foo = array('yes'); $c = 'no'; echo "r1: $foo[0]\n"; echo "r2: ${foo[0]}\n"; echo "r3: ${ foo[0]}\n"; echo "r4: ${foo[0] }\n"; echo "r5: ${foo [0]}\n"; echo "r6: ${foo[0 ]}\n"; echo "r7: ${ foo [ 0 ] }\n";

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)
8.3.60.0150.00018.43
8.3.50.0040.01116.34
8.3.40.0090.00618.59
8.3.30.0130.00318.73
8.3.20.0050.00321.79
8.3.10.0080.00020.33
8.3.00.0080.00020.61
8.2.180.0090.00618.68
8.2.170.0040.01122.96
8.2.160.0070.01022.22
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0040.00426.16
8.2.120.0040.00426.16
8.2.110.0090.00020.38
8.2.100.0060.00617.91
8.2.90.0000.00919.17
8.2.80.0040.00419.28
8.2.70.0080.00417.50
8.2.60.0040.00417.80
8.2.50.0090.00018.07
8.2.40.0050.00319.61
8.2.30.0000.00717.82
8.2.20.0050.00218.19
8.2.10.0030.00621.08
8.2.00.0040.00419.33
8.1.280.0110.00325.92
8.1.270.0040.00420.77
8.1.260.0040.00426.35
8.1.250.0050.00528.09
8.1.240.0000.00922.62
8.1.230.0070.00420.97
8.1.220.0040.00418.77
8.1.210.0030.00618.93
8.1.200.0040.00417.35
8.1.190.0080.00017.22
8.1.180.0040.00418.10
8.1.170.0060.00320.69
8.1.160.0040.00418.77
8.1.150.0040.00418.92
8.1.140.0000.00722.15
8.1.130.0030.00320.15
8.1.120.0040.00417.47
8.1.110.0070.00017.44
8.1.100.0050.00317.37
8.1.90.0060.00317.35
8.1.80.0000.00717.36
8.1.70.0030.00517.42
8.1.60.0000.01017.42
8.1.50.0040.00417.41
8.1.40.0100.00017.50
8.1.30.0000.00817.55
8.1.20.0060.00317.64
8.1.10.0040.00417.59
8.1.00.0060.00317.56
8.0.300.0000.00820.09
8.0.290.0000.00717.18
8.0.280.0000.00818.52
8.0.270.0070.00017.99
8.0.260.0030.00320.07
8.0.250.0030.00317.03
8.0.240.0000.00617.11
8.0.230.0070.00016.96
8.0.220.0000.00716.92
8.0.210.0030.00316.95
8.0.200.0030.00316.91
8.0.190.0000.00716.98
8.0.180.0030.00616.87
8.0.170.0040.00416.87
8.0.160.0040.00417.05
8.0.150.0030.00616.87
8.0.140.0040.00416.86
8.0.130.0000.00713.35
8.0.120.0000.00816.89
8.0.110.0040.00417.00
8.0.100.0070.00016.98
8.0.90.0060.00316.85
8.0.80.0090.00616.98
8.0.70.0070.00016.82
8.0.60.0060.00317.00
8.0.50.0070.00016.98
8.0.30.0100.01017.05
8.0.20.0070.01417.22
8.0.10.0000.00817.09
8.0.00.0060.01216.73
7.4.330.0050.00015.55
7.4.320.0000.00616.63
7.4.300.0060.00016.65
7.4.290.0000.00816.49
7.4.280.0030.00516.61
7.4.270.0030.00316.46
7.4.260.0000.00613.34
7.4.250.0000.00716.50
7.4.240.0050.00216.50
7.4.230.0070.00016.59
7.4.220.0020.00516.59
7.4.210.0080.00916.56
7.4.200.0020.00516.41
7.4.130.0120.00616.36
7.4.120.0160.01016.46
7.4.110.0100.00716.61
7.4.100.0110.00716.59
7.4.90.0130.01016.52
7.4.80.0130.01019.39
7.4.70.0120.00416.54
7.4.60.0120.00416.52
7.4.50.0030.01316.49
7.4.40.0080.00816.68
7.4.00.0060.01414.98
7.3.330.0000.00716.43
7.3.320.0030.00313.17
7.3.310.0000.00716.18
7.3.300.0060.00316.18
7.3.290.0000.00616.29
7.3.280.0140.00016.33
7.3.260.0130.00516.68
7.3.240.0100.00716.43
7.3.230.0060.01316.46
7.3.210.0060.01716.31
7.3.200.0110.00516.53
7.3.190.0100.00716.52
7.3.180.0090.00616.53
7.3.170.0090.00916.32
7.3.160.0140.00816.49
7.3.120.0100.00914.81
7.3.110.0090.00614.76
7.3.100.0070.01014.74
7.3.90.0080.01014.76
7.3.80.0070.00614.85
7.3.70.0070.00514.69
7.3.60.0060.00714.74
7.3.50.0040.00914.59
7.3.40.0050.00914.73
7.3.30.0070.00714.80
7.3.20.0070.00716.01
7.3.10.0050.00715.97
7.3.00.0030.00915.98
7.2.330.0000.01716.49
7.2.320.0090.00616.62
7.2.310.0030.01716.61
7.2.300.0110.00816.67
7.2.290.0150.00616.76
7.2.250.0060.01115.10
7.2.240.0040.01415.03
7.2.230.0070.00815.14
7.2.220.0070.00715.14
7.2.210.0060.01014.96
7.2.200.0090.00515.06
7.2.190.0060.00614.91
7.2.180.0060.00714.85
7.2.170.0050.00914.94
7.1.330.0030.01015.22
7.1.320.0050.00615.15
7.1.310.0060.00715.13
7.1.300.0030.01015.08
7.1.290.0090.00615.07
7.1.280.0060.00915.11
7.1.270.0050.00615.17
7.1.260.0050.00815.21

preferences:
49.67 ms | 400 KiB | 5 Q