3v4l.org

run code in 300+ PHP versions simultaneously
<?php $♥  = "love"; $pat = "[♥]+"; $sub = "heart"; $code = mb_ereg_replace( $pat, $sub, "I \$♥ PHP" ); var_dump( $code ); echo $code;               

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)
5.4.310.0060.03812.46
5.4.300.0090.03412.46
5.4.290.0050.03912.46
5.4.280.0040.03912.36
5.4.270.0060.03712.36
5.4.260.0070.03612.36
5.4.250.0030.04012.36
5.4.240.0070.03512.36
5.4.230.0070.04912.35
5.4.220.0090.03612.35
5.4.210.0080.03312.35
5.4.200.0070.03712.35
5.4.190.0080.04212.34
5.4.180.0110.04312.35
5.4.170.0110.03412.36
5.4.160.0110.03512.36
5.4.150.0080.03412.35
5.4.140.0060.03612.04
5.4.130.0070.03412.02
5.4.120.0080.03311.99
5.4.110.0050.03511.98
5.4.100.0060.03511.98
5.4.90.0080.03411.98
5.4.80.0060.04211.98
5.4.70.0040.03611.98
5.4.60.0100.03011.98
5.4.50.0060.03411.98
5.4.40.0050.03411.96
5.4.30.0010.04011.96
5.4.20.0050.03611.95
5.4.10.0040.03611.96
5.4.00.0070.03411.45
5.3.280.0070.03712.71
5.3.270.0080.03612.72
5.3.260.0040.04112.72
5.3.250.0040.03912.72
5.3.240.0080.03512.72
5.3.230.0080.03612.71
5.3.220.0060.03712.68
5.3.210.0030.04212.68
5.3.200.0040.03912.68
5.3.190.0060.04212.67
5.3.180.0090.03412.68
5.3.170.0080.03412.67
5.3.160.0060.03612.68
5.3.150.0070.03712.67
5.3.140.0080.03412.66
5.3.130.0080.03712.66
5.3.120.0070.03912.66
5.3.110.0100.03512.66
5.3.100.0100.03412.12
5.3.90.0040.03912.09
5.3.80.0050.03812.07
5.3.70.0080.03412.07
5.3.60.0060.03712.07
5.3.50.0060.03912.00
5.3.40.0070.03612.00
5.3.30.0060.03711.95
5.3.20.0050.03911.73
5.3.10.0080.03611.70
5.3.00.0080.03911.68
5.2.170.0040.0359.19
5.2.160.0020.0319.18
5.2.150.0030.0399.19
5.2.140.0050.0329.18
5.2.130.0030.0309.14
5.2.120.0060.0299.14
5.2.110.0040.0339.15
5.2.100.0110.0299.14
5.2.90.0050.0399.14
5.2.80.0050.0319.14
5.2.70.0060.0289.14
5.2.60.0020.0329.10
5.2.50.0050.0339.07
5.2.40.0080.0279.04
5.2.30.0040.0369.01
5.2.20.0030.0319.01
5.2.10.0050.0298.93
5.2.00.0030.0308.78
5.1.60.0060.0228.07
5.1.50.0050.0248.07
5.1.40.0030.0258.04
5.1.30.0050.0298.39
5.1.20.0030.0318.42
5.1.10.0070.0258.15
5.1.00.0080.0218.14
5.0.50.0040.0256.63
5.0.40.0020.0276.48
5.0.30.0020.0326.30
5.0.20.0040.0186.26
5.0.10.0020.0206.25
5.0.00.0060.0276.24
4.4.90.0020.0174.77
4.4.80.0030.0154.76
4.4.70.0050.0124.76
4.4.60.0050.0194.75
4.4.50.0050.0174.77
4.4.40.0030.0294.71
4.4.30.0040.0154.76
4.4.20.0010.0174.84
4.4.10.0020.0164.85
4.4.00.0010.0264.76
4.3.110.0010.0174.67
4.3.100.0040.0134.66
4.3.90.0010.0174.63
4.3.80.0060.0264.59
4.3.70.0040.0194.63
4.3.60.0050.0174.63
4.3.50.0040.0184.62
4.3.40.0030.0234.54
4.3.30.0030.0143.29
4.3.20.0030.0183.26
4.3.10.0020.0193.22
4.3.00.0200.0237.05

preferences:
139.93 ms | 1386 KiB | 7 Q