3v4l.org

run code in 300+ PHP versions simultaneously
<?php $times = 10000; $var = null; $var = new stdClass(); $time1 = microtime(true); for ($i = 0; $i <= $times; $i++) { if ($var instanceof stdClass) {} } $time1 = microtime(true) - $time1; echo "Time using '!': $time1\n"; $time2 = microtime(true); for ($i = 0; $i <= $times; $i++) { if ($var !== null) {} } $time2 = microtime(true) - $time2; echo "Time using '===': $time2\n"; if ($time1 > $time2){ $p = (($time1-$time2)/$time2) * 100; printf("'!== null' was faster by %.2f percent.", $p); } else { $p = (($time2-$time1)/$time1) * 100; printf("'instanceof' was faster by %.2f percent.", $p); }

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)
7.2.00.0030.01019.36
7.1.70.0080.00317.19
7.1.60.0040.02219.32
7.1.50.0030.00916.89
7.1.00.0030.07322.36
7.0.200.0030.01016.51
7.0.140.0070.06721.94
7.0.90.0230.00714.35
7.0.80.0070.06019.89
7.0.70.0070.08319.92
7.0.60.0100.06720.10
7.0.50.0070.08320.32
7.0.40.0070.05020.04
7.0.30.0230.06720.09
7.0.20.0100.06720.19
7.0.10.0130.03320.03
7.0.00.0030.04320.13
5.6.280.0030.07721.08
5.6.230.0130.06720.49
5.6.220.0100.07320.70
5.6.210.0100.08020.59
5.6.200.0130.05721.12
5.6.190.0100.08321.05
5.6.180.0130.05021.13
5.6.170.0000.04721.04
5.6.160.0030.04321.08
5.6.150.0070.04721.02
5.6.140.0000.04721.14
5.6.130.0000.08721.14
5.6.120.0030.04021.09
5.6.110.0030.04021.16
5.6.100.0070.05021.03
5.6.90.0000.04720.95
5.6.80.0000.05320.41
5.6.70.0000.04320.42
5.6.60.0070.04020.42
5.6.50.0000.08020.35
5.6.40.0070.04020.44
5.6.30.0070.03320.38
5.6.20.0070.06320.30
5.6.10.0070.05020.35
5.6.00.0070.08720.39
5.5.370.0070.08020.59
5.5.360.0030.08720.41
5.5.350.0170.07720.39
5.5.340.0170.07320.86
5.5.330.0000.09320.92
5.5.320.0030.04320.91
5.5.310.0000.05720.88
5.5.300.0100.04020.84
5.5.290.0070.08020.91
5.5.280.0030.04320.92
5.5.270.0070.04020.88
5.5.260.0030.04320.63
5.5.250.0030.03720.59
5.5.240.0030.04320.18
5.5.230.0070.03720.29
5.5.220.0100.03020.25
5.5.210.0030.08320.27
5.5.200.0030.05020.28
5.5.190.0170.02720.18
5.5.180.0100.07020.24
5.5.160.0130.08720.27
5.5.150.0100.07320.21
5.5.140.0100.06720.16
5.5.130.0030.07720.18
5.5.120.0070.06320.23
5.5.110.0130.07020.18
5.5.100.0000.04720.06
5.5.90.0100.07320.01
5.5.80.0200.04320.01
5.5.70.0030.04720.15
5.5.60.0070.08020.07
5.5.50.0070.06720.11
5.5.40.0100.07320.07
5.5.30.0130.07319.93
5.5.20.0030.08020.03
5.5.10.0070.08020.04
5.5.00.0000.07320.03
5.4.450.0070.08319.39
5.4.440.0030.04019.27
5.4.430.0030.03319.42
5.4.420.0000.03719.11
5.4.410.0130.03019.31
5.4.400.0030.03718.82
5.4.390.0000.04318.82
5.4.380.0000.04018.96
5.4.370.0030.03719.12
5.4.360.0000.05319.23
5.4.350.0070.06319.14
5.4.340.0100.05718.78
5.4.320.0030.08018.78
5.4.310.0070.06019.05
5.4.300.0030.07719.07
5.4.290.0070.07318.97
5.4.280.0070.05019.04
5.4.270.0100.03719.05
5.4.260.0070.04719.05
5.4.250.0070.06319.11
5.4.240.0070.07319.14
5.4.230.0030.07718.77
5.4.220.0070.07719.22
5.4.210.0100.06019.05
5.4.200.0030.05719.05
5.4.190.0100.04019.05
5.4.180.0070.08319.05
5.4.170.0170.06718.94
5.4.160.0070.03719.04
5.4.150.0070.08019.00
5.4.140.0100.06716.36
5.4.130.0030.07716.32
5.4.120.0070.05316.41
5.4.110.0170.05716.26
5.4.100.0000.07316.23
5.4.90.0070.06316.21
5.4.80.0030.07316.35
5.4.70.0100.07016.46
5.4.60.0100.06716.30
5.4.50.0070.07316.38
5.4.40.0070.05716.23
5.4.30.0030.07316.40
5.4.20.0100.05316.20
5.4.10.0070.07716.23
5.4.00.0170.05715.77
5.3.290.0030.06714.63
5.3.280.0070.08014.52
5.3.270.0130.07014.45
5.3.260.0070.05314.61
5.3.250.0030.07714.61
5.3.240.0070.07314.52
5.3.230.0030.07714.48
5.3.220.0070.07714.57
5.3.210.0070.05314.52
5.3.200.0100.07014.39
5.3.190.0000.08014.60
5.3.180.0070.07014.43
5.3.170.0070.08014.39
5.3.160.0030.04314.39
5.3.150.0000.08014.54
5.3.140.0100.05314.55
5.3.130.0100.07014.56
5.3.120.0030.07014.54
5.3.110.0130.06714.56
5.3.100.0100.07013.87
5.3.90.0030.05714.00
5.3.80.0100.06013.88
5.3.70.0100.08013.97
5.3.60.0070.07713.99
5.3.50.0030.05013.93
5.3.40.0070.07013.90
5.3.30.0030.08013.86
5.3.20.0100.07313.65
5.3.10.0070.06713.61
5.3.00.0130.06313.61
5.2.170.0030.06713.61
5.2.160.0030.06313.61
5.2.150.0100.03313.61
5.2.140.0000.07013.61
5.2.130.0030.06313.61
5.2.120.0030.06713.61
5.2.110.0070.05713.61
5.2.100.0070.06313.61
5.2.90.0070.06013.61
5.2.80.0100.06013.61
5.2.70.0130.06013.61
5.2.60.0070.06013.61
5.2.50.0030.06713.61
5.2.40.0030.07013.61
5.2.30.0000.07013.61
5.2.20.0100.03313.61
5.2.10.0070.06013.61
5.2.00.0000.06313.61
5.1.60.0030.04313.61
5.1.50.0000.06013.61
5.1.40.0070.05313.61
5.1.30.0030.03013.61
5.1.20.0100.02313.61
5.1.10.0070.05013.61
5.1.00.0030.05713.61
5.0.50.0070.02313.61
5.0.40.0030.05313.61
5.0.30.0030.04013.61
5.0.20.0000.04013.61
5.0.10.0030.03713.61
5.0.00.0000.05013.61
4.4.90.0000.03713.61
4.4.80.0030.03713.61
4.4.70.0000.02713.61
4.4.60.0000.02313.61
4.4.50.0000.03713.61
4.4.40.0000.02713.61
4.4.30.0000.01713.61
4.4.20.0030.03013.61
4.4.10.0030.01713.61
4.4.00.0000.04713.61
4.3.110.0030.02313.61
4.3.100.0000.03713.61
4.3.90.0000.03713.61
4.3.80.0000.05013.61
4.3.70.0000.03313.61
4.3.60.0070.02313.61
4.3.50.0100.01013.61
4.3.40.0030.03313.61
4.3.30.0000.03713.61
4.3.20.0030.03713.61
4.3.10.0030.03713.61
4.3.00.0000.02713.61

preferences:
30.7 ms | 401 KiB | 5 Q