Online PHP editor | perf for 4nVaD

@ 2013-07-29T06:40:28Z

<?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)
5.4.17	0.090	0.030	18.94
5.4.16	0.047	0.043	19.09
5.4.15	0.067	0.040	19.20
5.4.14	0.033	0.040	16.35
5.4.13	0.077	0.037	16.32
5.4.12	0.057	0.033	16.50
5.4.11	0.097	0.027	16.38
5.4.10	0.060	0.033	16.54
5.4.9	0.027	0.030	16.56
5.4.8	0.037	0.043	16.34
5.4.7	0.060	0.030	16.17
5.4.6	0.053	0.037	16.33
5.4.5	0.017	0.037	16.24
5.4.4	0.080	0.030	16.32
5.4.3	0.083	0.027	16.23
5.4.2	0.063	0.053	16.51
5.4.1	0.047	0.037	16.55
5.4.0	0.063	0.043	15.80
5.3.27	0.073	0.050	15.77
5.3.26	0.073	0.037	15.77
5.3.25	0.067	0.033	15.77
5.3.24	0.057	0.037	15.77
5.3.23	0.047	0.037	15.77
5.3.22	0.043	0.040	15.77
5.3.21	0.070	0.040	15.77
5.3.20	0.050	0.033	15.77
5.3.19	0.050	0.027	15.77
5.3.18	0.097	0.033	15.77
5.3.17	0.083	0.033	15.77
5.3.16	0.090	0.037	15.77
5.3.15	0.050	0.047	15.77
5.3.14	0.047	0.027	15.77
5.3.13	0.047	0.037	15.77
5.3.12	0.040	0.050	15.77
5.3.11	0.053	0.047	15.77
5.3.10	0.077	0.047	15.77
5.3.9	0.057	0.057	15.77
5.3.8	0.063	0.053	15.77
5.3.7	0.053	0.057	15.77
5.3.6	0.080	0.040	15.77
5.3.5	0.063	0.030	15.77
5.3.4	0.070	0.033	15.77
5.3.3	0.083	0.030	15.77
5.3.2	0.067	0.033	15.77
5.3.1	0.053	0.037	15.77
5.3.0	0.060	0.050	15.77

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