3v4l.org

run code in 300+ PHP versions simultaneously
<?php function _empty($value) { return $value ? 'non_empty' : 'empty'; } function _empty_fix($value) { $value = is_numeric($value) ? floatval($value) : $value; return $value ? 'non_empty' : 'empty'; } float $var = '0.0'; echo "normal :\n"; echo "\n0 : ", _empty(0); echo "\n0.0 : ", _empty(0.0); echo "\n'0' : ", _empty('0'); echo "\n'0.0' : ", _empty('0.0'); echo "\n\nfix :\n"; echo "\n0 : ", _empty_fix(0); echo "\n0.0 : ", _empty_fix(0.0); echo "\n'0' : ", _empty_fix('0'); echo "\n'0.0' : ", _empty_fix('0.0');

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)
5.5.90.0070.03719.24
5.5.80.0070.03719.45
5.5.70.0100.03319.54
5.5.60.0100.04319.47
5.5.50.0070.03319.35
5.5.40.0030.04319.22
5.5.30.0070.08019.45
5.5.20.0030.06319.54
5.5.10.0000.05319.42
5.5.00.0000.04319.26
5.4.250.0070.03318.93
5.4.240.0100.03018.91
5.4.230.0030.03719.16
5.4.220.0000.04019.23
5.4.210.0070.03719.11
5.4.200.0100.03018.86
5.4.190.0000.04018.83
5.4.180.0030.06018.84
5.4.170.0030.03719.07
5.4.160.0030.03719.07
5.4.150.0100.03719.13
5.4.140.0000.04016.38
5.4.130.0030.03716.58
5.4.120.0030.03316.38
5.4.110.0000.03716.44
5.4.100.0000.03716.42
5.4.90.0030.03316.54
5.4.80.0070.03316.49
5.4.70.0030.03316.43
5.4.60.0030.03316.27
5.4.50.0030.03316.46
5.4.40.0000.03716.46
5.4.30.0030.03716.36
5.4.20.0030.03316.39
5.4.10.0030.03716.41
5.4.00.0000.03715.85
5.3.280.0000.04314.64
5.3.270.0030.03714.60
5.3.260.0070.03714.66
5.3.250.0000.04314.76
5.3.240.0030.03314.63
5.3.230.0030.04014.54
5.3.220.0070.03714.61
5.3.210.0070.03314.60
5.3.200.0070.03314.62
5.3.190.0000.04314.61
5.3.180.0000.03714.56
5.3.170.0000.04314.64
5.3.160.0070.03314.57
5.3.150.0070.03014.59
5.3.140.0000.03714.44
5.3.130.0000.04014.54
5.3.120.0000.04014.60
5.3.110.0070.03314.56
5.3.100.0170.05714.07
5.3.90.0100.05014.06
5.3.80.0070.05313.98
5.3.70.0070.03314.07
5.3.60.0070.03714.05
5.3.50.0030.04014.00
5.3.40.0100.07014.11
5.3.30.0070.07013.82
5.3.20.0100.07013.75
5.3.10.0100.06713.68
5.3.00.0000.07313.67

preferences:
142.2 ms | 941 KiB | 8 Q