3v4l.org

run code in 300+ PHP versions simultaneously
<?php if (!function_exists('json_encode')) { function json_encode($it) { if (!($assoc = is_object($it)) && !is_array($it)) { return _js_enc_value($it); } $i = 0; $it = (array)$it; if (!$assoc) { foreach ($it as $k => $v) { if ($k !== $i) { $assoc = true; break; } $i++; } } $data = array(); foreach ($it as $k => $v) { $v = _js_enc_value($v); if ($assoc) { $k = _js_enc_value($k); $data[] = $k . ':' . $v; } else { $data[] = $v; } } if ($assoc) { $bl = '{'; $br = '}'; } else { $bl = '['; $br = ']'; } return $bl . implode(',', $data) . $br; } function _js_enc_value($value) { switch (true) { case is_array($value): case is_object($value): return json_encode($value); case is_bool($value): return $value ? 'true' : 'false'; case $value === null: case is_resource($value) && _js_error(): return 'null'; case is_string($value): return '"' . _js_uc_esc($value) . '"'; default: return $value; } } function _js_error() { return trigger_error( 'json_encode(): type is unsupported, encoded as null', E_USER_WARNING ); } function _js_uc_esc($value) { $pattern = "@[\x09\x0a\x0b\x0d\"'/]|([^\x09\x0a\x0d\x20-\x7e|]{3}|\\0|%s)+@"; return preg_replace_callback($pattern, '_js_uc_esc_cb', $value); } function _js_uc_esc_cb($matches) { switch (true) { case isset($matches[1]): $char = mb_convert_encoding($matches[0], 'UTF-16', 'UTF-8'); $str = ''; $len = strlen($char); for ($i = 0; $i < $len; $i += 2) { $str .= sprintf('\\u%02x%02x', ord($char[$i]), ord($char[$i + 1]) ); } return $str; default: return addcslashes($matches[0], "\f\n\r\t\"'/"); } } } $str = ''; for ($i=0;$i<=32;$i++) { $str .= chr($i); } $str .= chr(127); echo json_encode(array('&/"\''=>$str));

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)
8.3.60.0120.00916.75
8.3.50.0110.00716.40
8.3.40.0100.01018.84
8.3.30.0070.00718.83
8.3.20.0090.00018.54
8.3.10.0080.00020.34
8.3.00.0030.00519.38
8.2.180.0150.00418.55
8.2.170.0110.00322.96
8.2.160.0100.00320.39
8.2.150.0080.00024.18
8.2.140.0000.00824.66
8.2.130.0030.00526.16
8.2.120.0070.00019.83
8.2.110.0030.00621.05
8.2.100.0030.00917.84
8.2.90.0000.00819.36
8.2.80.0050.00318.05
8.2.70.0080.00017.50
8.2.60.0030.00618.04
8.2.50.0000.00818.07
8.2.40.0040.00418.16
8.2.30.0040.00418.20
8.2.20.0040.00417.73
8.2.10.0040.00417.85
8.2.00.0000.00717.71
8.1.280.0030.01125.92
8.1.270.0070.00024.66
8.1.260.0000.00726.35
8.1.250.0040.00428.09
8.1.240.0080.00022.48
8.1.230.0060.00621.16
8.1.220.0000.00818.77
8.1.210.0030.00519.17
8.1.200.0030.00617.48
8.1.190.0000.00817.66
8.1.180.0030.00618.10
8.1.170.0000.00819.02
8.1.160.0040.00418.84
8.1.150.0040.00418.70
8.1.140.0080.00017.50
8.1.130.0030.00317.94
8.1.120.0000.00817.55
8.1.110.0050.00317.57
8.1.100.0020.00517.54
8.1.90.0050.00317.51
8.1.80.0020.00517.54
8.1.70.0000.00717.42
8.1.60.0080.00017.68
8.1.50.0040.00417.57
8.1.40.0040.00417.48
8.1.30.0040.00417.73
8.1.20.0000.00817.55
8.1.10.0040.00417.53
8.1.00.0000.00817.52
8.0.300.0070.00419.86
8.0.290.0080.00016.88
8.0.280.0000.00718.43
8.0.270.0030.00317.34
8.0.260.0070.00016.89
8.0.250.0030.00617.02
8.0.240.0060.00316.91
8.0.230.0050.00216.89
8.0.220.0000.00816.89
8.0.210.0040.00416.85
8.0.200.0060.00316.95
8.0.190.0040.00416.93
8.0.180.0070.00017.04
8.0.170.0070.00316.87
8.0.160.0040.00416.96
8.0.150.0060.00317.03
8.0.140.0070.00016.93
8.0.130.0060.00013.38
8.0.120.0000.00716.88
8.0.110.0030.00616.83
8.0.100.0040.00416.76
8.0.90.0000.00716.81
8.0.80.0080.00817.02
8.0.70.0000.00716.91
8.0.60.0000.00717.02
8.0.50.0050.00216.96
8.0.30.0090.01117.03
8.0.20.0110.00817.04
8.0.10.0030.00517.11
8.0.00.0090.00916.71
7.4.330.0050.00013.03
7.4.320.0030.00316.50
7.4.300.0060.00016.60
7.4.290.0080.00016.59
7.4.280.0080.00016.49
7.4.270.0070.00016.52
7.4.260.0030.00313.46
7.4.250.0040.00416.55
7.4.240.0040.00416.61
7.4.230.0030.00316.67
7.4.220.0130.00616.56
7.4.210.0090.00916.54
7.4.200.0040.00416.71
7.4.190.0040.00416.46
7.4.160.0120.00416.68
7.4.150.0130.01016.38
7.4.140.0120.00716.38
7.4.130.0090.00916.59
7.4.120.0110.00816.61
7.4.110.0030.01516.70
7.4.100.0150.00416.34
7.4.90.0070.01116.48
7.4.80.0030.01316.57
7.4.70.0110.00516.53
7.4.60.0030.01316.59
7.4.50.0000.00916.52
7.4.40.0040.01116.61
7.4.30.0100.00716.52
7.4.00.0110.00715.00
7.3.330.0000.00613.25
7.3.320.0000.00513.50
7.3.310.0080.00016.45
7.3.300.0000.00716.30
7.3.290.0070.00716.41
7.3.280.0050.01216.42
7.3.270.0180.00016.48
7.3.260.0090.00916.47
7.3.250.0100.00816.49
7.3.240.0060.01316.43
7.3.230.0070.01016.42
7.3.210.0070.01016.77
7.3.200.0100.01319.39
7.3.190.0060.01716.46
7.3.180.0060.01116.75
7.3.170.0070.01016.73
7.3.160.0070.00816.48
7.3.120.0000.01514.90
7.2.330.0070.01016.52
7.2.320.0080.01316.55
7.2.310.0130.00916.50
7.2.300.0030.01616.86
7.2.290.0110.00716.53
7.2.00.0030.01019.45
7.1.100.0080.00518.02
7.1.70.0040.00417.14
7.1.60.0070.01819.40
7.1.50.0100.01616.86
7.1.00.0030.08022.45
7.0.200.0090.00314.91
7.0.140.0070.06321.98
7.0.120.0000.07022.16
7.0.110.0300.06719.95
7.0.100.0670.08020.01
7.0.90.0600.08019.94
7.0.80.0370.05319.94
7.0.70.0630.06319.89
7.0.60.0500.07320.04
7.0.50.0630.08020.22
7.0.40.0170.07319.96
7.0.30.0100.07720.28
7.0.20.0070.07720.17
7.0.10.0130.04320.24
7.0.00.0170.08320.14
5.6.280.0000.07721.08
5.6.260.0070.04720.66
5.6.250.0130.07020.61
5.6.240.0070.07720.68
5.6.230.0070.08720.56
5.6.220.0070.08720.86
5.6.210.0100.07020.58
5.6.200.0000.09321.00
5.6.190.0070.04321.13
5.6.180.0170.07321.00
5.6.170.0070.08021.04
5.6.160.0130.07720.97
5.6.150.0100.06720.95
5.6.140.0200.06321.20
5.6.130.0030.07721.06
5.6.120.0070.07720.99
5.6.110.0130.07720.96
5.6.100.0100.07721.19
5.6.90.0170.07721.14
5.6.80.0070.08320.54
5.6.70.0130.05320.54
5.6.60.0200.04020.53
5.6.50.0100.04720.54
5.6.40.0130.06720.45
5.6.30.0130.07020.43
5.6.20.0100.07020.30
5.6.10.0130.08020.63
5.6.00.0230.06020.48
5.5.380.0200.06720.56
5.5.370.0170.07020.59
5.5.360.0070.07720.58
5.5.350.0270.06320.40
5.5.340.0130.07020.92
5.5.330.0030.08720.92
5.5.320.0170.07020.72
5.5.310.0130.07720.97
5.5.300.0070.08720.91
5.5.290.0100.05720.86
5.5.280.0270.06020.86
5.5.270.0100.08320.82
5.5.260.0070.08320.80
5.5.250.0130.06720.63
5.5.240.0100.06020.10
5.5.230.0130.07320.30
5.5.220.0070.07720.30
5.5.210.0030.07320.38
5.5.200.0200.07020.23
5.5.190.0100.04720.31
5.5.180.0130.07020.11
5.5.160.0100.04320.31
5.5.150.0070.07720.11
5.5.140.0000.08320.27
5.5.130.0170.06320.33
5.5.120.0030.08320.06
5.5.110.0070.07720.04
5.5.100.0200.07020.21
5.5.90.0030.04320.02
5.5.80.0070.03720.09
5.5.70.0070.05020.18
5.5.60.0030.03720.08
5.5.50.0030.06020.15
5.5.40.0030.04320.16
5.5.30.0070.03719.98
5.5.20.0000.04020.23
5.5.10.0070.06319.95
5.5.00.0070.03320.21
5.4.450.0130.07019.34
5.4.440.0100.08719.67
5.4.430.0130.06019.41
5.4.420.0100.07719.35
5.4.410.0030.04719.53
5.4.400.0070.06019.25
5.4.390.0130.07319.09
5.4.380.0100.04019.02
5.4.370.0130.07019.16
5.4.360.0070.07318.95
5.4.350.0070.07019.33
5.4.340.0030.05319.23
5.4.320.0070.07719.16
5.4.310.0000.08719.34
5.4.300.0130.06718.95
5.4.290.0100.06019.00
5.4.280.0030.07718.96
5.4.270.0030.07319.30
5.4.260.0130.07319.01
5.4.250.0070.05718.98
5.4.240.0130.03719.17
5.4.230.0000.06719.15
5.4.220.0070.04019.36
5.4.210.0030.03719.23
5.4.200.0030.03719.16
5.4.190.0130.03318.99
5.4.180.0070.06319.21
5.4.170.0030.06019.08
5.4.160.0170.06719.01
5.4.150.0030.03719.16
5.4.140.0030.03316.40
5.4.130.0030.04716.48
5.4.120.0030.04716.44
5.4.110.0070.03716.63
5.4.100.0070.04316.55
5.4.90.0030.03316.41
5.4.80.0000.06016.57
5.4.70.0100.02716.70
5.4.60.0070.04016.54
5.4.50.0070.03316.53
5.4.40.0100.03316.52
5.4.30.0070.04016.34
5.4.20.0100.03016.25
5.4.10.0030.03716.48
5.4.00.0000.04316.07
5.3.290.0130.06714.67
5.3.280.0030.07314.59
5.3.270.0070.07314.64
5.3.260.0070.07714.49
5.3.250.0000.07714.71
5.3.240.0130.05714.66
5.3.230.0030.03714.85
5.3.220.0070.03714.82
5.3.210.0030.03714.67
5.3.200.0030.07314.63
5.3.190.0030.03714.82
5.3.180.0030.04714.45
5.3.170.0030.04314.73
5.3.160.0030.03714.61
5.3.150.0030.03714.68
5.3.140.0030.04014.58
5.3.130.0030.03714.67
5.3.120.0000.04014.58
5.3.110.0000.04014.59
5.3.100.0030.03714.30
5.3.90.0030.03714.06
5.3.80.0100.03014.05
5.3.70.0070.03314.04
5.3.60.0030.03714.01
5.3.50.0000.04014.00
5.3.40.0030.05314.20
5.3.30.0030.06014.00
5.3.20.0000.03713.71
5.3.10.0030.03313.66
5.3.00.0000.03713.67
5.2.170.0000.03311.88
5.2.160.0000.03011.88
5.2.150.0070.03311.88
5.2.140.0030.03011.88
5.2.130.0100.02311.88
5.2.120.0030.03311.88
5.2.110.0000.03011.88
5.2.100.0070.02311.88
5.2.90.0030.03011.88
5.2.80.0000.03011.88
5.2.70.0000.03011.88
5.2.60.0000.03011.88
5.2.50.0030.03311.88
5.2.40.0000.03011.88
5.2.30.0000.03311.88
5.2.20.0030.02711.88
5.2.10.0000.03011.88
5.2.00.0100.05311.88
5.1.60.0000.02311.88
5.1.50.0130.04711.88
5.1.40.0100.04011.88
5.1.30.0100.04711.88
5.1.20.0070.02011.88
5.1.10.0030.04311.88
5.1.00.0070.05011.88
5.0.50.0000.02711.88
5.0.40.0070.04011.88
5.0.30.0070.06711.88
5.0.20.0100.04011.88
5.0.10.0000.05011.88
5.0.00.0030.06311.88
4.4.90.0000.01711.88
4.4.80.0030.01311.88
4.4.70.0000.01711.88
4.4.60.0030.01311.88
4.4.50.0030.01311.88
4.4.40.0100.03711.88
4.4.30.0030.03311.88
4.4.20.0000.03711.88
4.4.10.0000.03311.88
4.4.00.0070.05011.88
4.3.110.0000.03711.88
4.3.100.0030.03711.88
4.3.90.0100.02311.88
4.3.80.0030.04011.88
4.3.70.0000.03311.88
4.3.60.0030.03311.88
4.3.50.0030.02711.88
4.3.40.0030.04311.88
4.3.30.0000.03711.88
4.3.20.0000.03711.88
4.3.10.0000.03711.88
4.3.00.0070.03011.88

preferences:
49.88 ms | 401 KiB | 5 Q