Online PHP editor | perf for 7FBt8

@ 2013-07-29T06:40:39Z

<?php

echo 'null == false? ', (null == false) ? 'yes' : 'no', '<br />';
echo 'null == 0?', (null == 0) ? 'yes' : 'no', '<br />';
echo 'null == "0"?', (null == "0") ? 'yes' : 'no', '<br />';
echo 'null == $undefined?', (null == $undefined) ? 'yes' : 'no', '<br />';
echo 'null == ""?', (null == "") ? 'yes' : 'no', '<br />';

echo 'false == 0?', (false == 0) ? 'yes' : 'no', '<br />';
echo 'false == "0"?', (false == "0") ? 'yes' : 'no', '<br />';
echo 'false == $undefined?', (false == $undefined) ? 'yes' : 'no', '<br />';
echo 'false == ""?', (false == "") ? 'yes' : 'no', '<br />';

echo '0 == "0"?', (0 == "0") ? 'yes' : 'no', '<br />';
echo '0 == $undefined?', (0 == $undefined) ? 'yes' : 'no', '<br />';
echo '0 == ""?', (0 == "") ? 'yes', 'no' : '<br />';

echo '"0" == $undefined?', ("0" == $undefined) ? 'yes' : 'no', '<br />';
echo '"0" == ""?', ("0" == "") ? 'yes' : 'no', '<br />';

echo '$undefined == ""?', ($undefined == "") ? 'yes' : 'no', '<br />';

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).

Version	System time (s)	User time (s)	Memory (MiB)
5.5.1	0.017	0.073	17.21
5.5.0	0.010	0.073	17.17
5.4.17	0.003	0.080	19.13
5.4.16	0.007	0.067	18.95
5.4.15	0.010	0.070	19.12
5.4.14	0.003	0.040	16.39
5.4.13	0.007	0.033	16.41
5.4.12	0.010	0.067	16.39
5.4.11	0.003	0.073	16.49
5.4.10	0.013	0.040	16.40
5.4.9	0.003	0.060	16.48
5.4.8	0.007	0.033	16.54
5.4.7	0.003	0.047	16.29
5.4.6	0.007	0.043	16.56
5.4.5	0.007	0.070	16.36
5.4.4	0.010	0.070	16.26
5.4.3	0.003	0.073	16.42
5.4.2	0.003	0.060	16.45
5.4.1	0.010	0.060	16.55
5.4.0	0.010	0.060	15.74
5.3.27	0.007	0.083	14.56
5.3.26	0.013	0.060	14.59
5.3.25	0.010	0.033	14.54
5.3.24	0.000	0.040	14.54
5.3.23	0.013	0.037	14.39
5.3.22	0.017	0.057	14.52
5.3.21	0.007	0.080	14.36
5.3.20	0.007	0.057	14.53
5.3.19	0.007	0.063	14.55
5.3.18	0.000	0.057	14.36
5.3.17	0.007	0.067	14.52
5.3.16	0.007	0.073	14.49
5.3.15	0.000	0.050	14.56
5.3.14	0.007	0.063	14.56
5.3.13	0.007	0.073	14.50
5.3.12	0.007	0.050	14.42
5.3.11	0.003	0.077	14.49
5.3.10	0.010	0.070	13.88
5.3.9	0.003	0.077	13.86
5.3.8	0.007	0.073	13.97
5.3.7	0.017	0.043	14.00
5.3.6	0.000	0.050	14.00
5.3.5	0.000	0.043	13.93
5.3.4	0.007	0.073	13.82
5.3.3	0.010	0.070	13.88
5.3.2	0.010	0.057	13.67
5.3.1	0.003	0.077	13.64
5.3.0	0.013	0.050	13.41

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