Online PHP editor | rfc for 6OPhQ

@ 2013-10-23T07:59:28Z

<?php
echo "Compare non numeric string to string 0:        ('str' == '0')                 = " . ('str' == '0' ? 'true' : 'false') . "\n";
echo "Compare non numeric string to integer 0:       ('str' == 0)                   = " . ('str' == 0 ? 'true' : 'false') . "\n";

echo "Compare evtl. numeric string to string:        ('1string' == '1')             = " . ('1string' == '1' ? 'true' : 'false') . "\n";
echo "Compare evtl. numeric string to number:        ('1string' == 1)               = " . ('1string' == 1 ? 'true' : 'false') . "\n";

echo "Compare two numeric strings (same semantic 1): ('1e1' == '10')                = " . ('1e1' == '10' ? 'true' : 'false') . "\n";
echo "Compare two numeric strings (same semantic 2): ('1E1' == '10')                = " . ('1E1' == '10' ? 'true' : 'false') . "\n";
echo "Compare two numeric strings (same semantic 3): ('1e-1' == '0.1')              = " . ('1e-1' == '0.1' ? 'true' : 'false') . "\n";
echo "Compare two numeric strings (same semantic 4): ('1E-1' == '0.1')              = " . ('1E-1' == '0.1' ? 'true' : 'false') . "\n";
echo "Compare two numeric strings (same semantic 5): ('+1' == '1')                  = " . ('+1' == '1' ? 'true' : 'false') . "\n";
echo "Compare two numeric strings (same semantic 6): ('+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 git.master, git.master_jit, rfc.property-hooks: Compare non numeric string to string 0: ('str' == '0') = false Compare non numeric string to integer 0: ('str' == 0) = false Compare evtl. numeric string to string: ('1string' == '1') = false Compare evtl. numeric string to number: ('1string' == 1) = false Compare two numeric strings (same semantic 1): ('1e1' == '10') = true Compare two numeric strings (same semantic 2): ('1E1' == '10') = true Compare two numeric strings (same semantic 3): ('1e-1' == '0.1') = true Compare two numeric strings (same semantic 4): ('1E-1' == '0.1') = true Compare two numeric strings (same semantic 5): ('+1' == '1') = true Compare two numeric strings (same semantic 6): ('+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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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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