3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = '0e123'; var_dump($a == 0); var_dump($a == "0"); var_dump($a == 0x0); var_dump($a == true); var_dump($a != ' '); var_dump($a == ""); var_dump($a == ''); echo trim($a) ? 'X' : 'O'; echo empty($a) ? 'X' : 'O'; echo !empty($a) ? 'X' : 'O'; echo -$a ? 'X' : 'O'; echo "\n"; define('0e', 1); var_dump($a == 0e); echo "\n"; var_dump($a == " $a"); var_dump($a == "$a "); var_dump($a == '0x'); var_dump($a == '0e'); echo "\n"; var_dump($a == '0xe'); var_dump($a == '0xe0'); var_dump($a == '0x0e'); var_dump($a == ('0' . 'x0e'));

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)
5.6.80.0030.03720.37
5.5.240.0300.07720.26
5.4.400.0970.05318.79
5.4.390.1170.06018.47
5.4.380.1200.05318.50
5.4.370.1070.05718.57
5.4.360.1000.05318.57
5.4.350.1070.06018.61
5.4.340.0870.06318.57
5.4.320.1030.06018.62
5.4.310.1300.05318.46
5.4.300.1200.05718.71
5.4.290.1170.05318.53
5.4.280.1500.05718.74
5.4.270.0970.05718.67
5.4.260.1070.06018.75
5.4.250.1100.07018.61
5.4.240.1070.06018.46
5.4.230.1000.05318.59
5.4.220.1100.05318.46
5.4.210.1170.04318.61
5.4.200.1100.04716.82
5.4.190.1430.06318.59
5.4.180.1130.07718.56
5.4.170.1000.05718.68
5.4.160.0970.05018.79
5.4.150.0900.05718.54
5.4.140.1000.05016.33
5.4.130.1000.04716.22
5.4.120.1270.04716.29
5.4.110.1170.05316.29
5.4.100.1000.05316.29
5.4.90.1100.05716.17
5.4.80.1030.05016.21
5.4.70.0970.06016.27
5.4.60.1130.05016.23
5.4.50.1270.06316.16
5.4.40.1070.05316.41
5.4.30.1170.05016.25
5.4.20.1130.06016.26
5.4.10.0930.05016.25
5.4.00.1030.04315.77
5.3.290.0900.06314.64
5.3.280.1100.04314.61
5.3.270.1330.05014.62
5.3.260.1170.05714.57
5.3.250.1170.06714.54
5.3.240.1130.06014.52
5.3.230.1230.04314.53
5.3.220.1370.06714.50
5.3.210.1400.04714.67
5.3.200.1230.05014.46
5.3.190.1100.06714.46
5.3.180.1200.05014.54
5.3.170.1030.04714.47
5.3.160.1030.04714.48
5.3.150.1000.06014.64
5.3.140.0970.05714.47
5.3.130.1000.05014.53
5.3.120.0870.06014.55
5.3.110.0900.07014.59
5.3.100.0930.05714.08
5.3.90.1000.05314.11
5.3.80.1000.05313.93
5.3.70.1030.04713.93
5.3.60.0970.04713.98
5.3.50.1230.06713.88
5.3.40.1300.05013.92
5.3.30.1200.04713.88
5.3.20.1130.05013.71
5.3.10.1070.05713.59
5.3.00.1130.05013.73
5.2.170.0900.04711.16
5.2.160.0900.03311.06
5.2.150.0970.04011.07
5.2.140.0970.04311.29
5.2.130.0730.04711.03
5.2.120.0830.03311.03
5.2.110.0830.03711.14
5.2.100.1000.05011.06
5.2.90.1200.04711.15
5.2.80.0900.04011.10
5.2.70.1070.06311.24
5.2.60.0770.05011.05
5.2.50.0870.05310.99
5.2.40.0770.03711.01
5.2.30.0630.04310.93
5.2.20.0670.04010.94
5.2.10.0630.04010.83
5.2.00.0630.04010.69
5.1.60.0670.03310.04
5.1.50.0670.03310.13
5.1.40.0570.04010.10
5.1.30.0670.03010.33
5.1.20.0700.03710.41
5.1.10.0670.04310.04
5.1.00.0670.03310.21
5.0.50.0300.0308.61
5.0.40.0270.0338.54
5.0.30.0370.0408.34
5.0.20.0300.0308.32
5.0.10.0430.0308.30
5.0.00.0330.0478.37
4.4.90.0370.0235.94
4.4.80.0330.0205.90
4.4.70.0300.0235.89
4.4.60.0270.0275.87
4.4.50.0330.0205.90
4.4.40.0300.0375.91
4.4.30.0370.0175.85
4.4.20.0370.0235.95
4.4.10.0370.0235.98
4.4.00.0430.0275.96
4.3.110.0470.0175.84
4.3.100.0400.0205.86
4.3.90.0330.0235.84
4.3.80.0370.0405.91
4.3.70.0370.0235.82
4.3.60.0470.0275.90
4.3.50.0400.0205.82
4.3.40.0370.0305.80
4.3.30.0130.0274.62
4.3.20.0130.0274.57
4.3.10.0200.0204.52
4.3.00.0000.0237.04

preferences:
145.75 ms | 1394 KiB | 7 Q