Online PHP editor | output for bdb97

@ 2013-10-23T07:51:52Z

<?php

echo "Compare two non numeric strings:          ('str' == '0') = " . ('str' == '0' ? 'true' : 'false') . "\n";
echo "Compare non numeric string to intteger 0: ('str' == 0)   = " . ('str' == 0 ? 'true' : 'false') . "\n";

echo "Compare two numeric strings (same senamtic 1): ('1e1' == '10') = " . ('1e1' == '10' ? 'true' : 'false') . "\n";
echo "Compare two numeric strings (same senamtic 1): ('1e-1' == '10') = " . ('1e-1' == '10' ? 'true' : 'false') . "\n";
echo "Compare two numeric strings (same senamtic 1): ('1E1' == '10') = " . ('1E1' == '10' ? 'true' : 'false') . "\n";
echo "Compare two numeric strings (same senamtic 1): ('1E-1' == '10') = " . ('1E-1' == '10' ? 'true' : 'false') . "\n";
echo "Compare two numeric strings (same senamtic 2): ('+1' == '1')   = " . ('+1' == '1' ? 'true' : 'false') . "\n";
echo "Compare two numeric strings (same senamtic 3): ('+0' == '-0')  = " . ('+0' == '-0' ? 'true' : 'false') . "\n";

echo "Compare two numeric strings (precision 1): ('0.99999999999999994' == '1') = " . ('0.99999999999999994' == '1' ? 'true' : 'false') . "\n";
echo "Compare two numeric strings (precision 2): ('0.99999999999999995' == '1') = " . ('0.99999999999999995' == '1' ? 'true' : 'false') . "\n";

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: Compare two non numeric strings: ('str' == '0') = false Compare non numeric string to intteger 0: ('str' == 0) = false Compare two numeric strings (same senamtic 1): ('1e1' == '10') = true Compare two numeric strings (same senamtic 1): ('1e-1' == '10') = false Compare two numeric strings (same senamtic 1): ('1E1' == '10') = true Compare two numeric strings (same senamtic 1): ('1E-1' == '10') = false Compare two numeric strings (same senamtic 2): ('+1' == '1') = true Compare two numeric strings (same senamtic 3): ('+0' == '-0') = true Compare two numeric strings (precision 1): ('0.99999999999999994' == '1') = false Compare two numeric strings (precision 2): ('0.99999999999999995' == '1') = true
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33: Compare two non numeric strings: ('str' == '0') = false Compare non numeric string to intteger 0: ('str' == 0) = true Compare two numeric strings (same senamtic 1): ('1e1' == '10') = true Compare two numeric strings (same senamtic 1): ('1e-1' == '10') = false Compare two numeric strings (same senamtic 1): ('1E1' == '10') = true Compare two numeric strings (same senamtic 1): ('1E-1' == '10') = false Compare two numeric strings (same senamtic 2): ('+1' == '1') = true Compare two numeric strings (same senamtic 3): ('+0' == '-0') = true Compare two numeric strings (precision 1): ('0.99999999999999994' == '1') = false Compare two numeric strings (precision 2): ('0.99999999999999995' == '1') = true

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