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PHP/Language Basics/Assertion - История изменений
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в 10:37, 26 мая 2010
2010-05-26T10:37:26Z
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Admin: 1 версия
2010-05-26T07:05:40Z
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<p><b>Новая страница</b></p><div>==Assertion Options==<br />
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<!-- start source code --><br />
<br />
<source lang="html4strict"><br />
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Constant Name Default Description<br />
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ASSERT_ACTIVE true Are assertions enabled?<br />
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ASSERT_WARNING true Should assertions cause standard PHP warnings?<br />
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ASSERT_BAIL false Should failed assertions cause the script to halt?<br />
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ASSERT_QUIET_EVAL false If an error occurs valuating an assertion when passed a string, should it report an error?<br />
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ASSERT_CALLBACK NULL The name of the function to call if an assertion fails.<br />
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</source><br />
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==Using the assert() Function==<br />
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<!-- start source code --><br />
<br />
<source lang="html4strict"><br />
<br />
<?php<br />
function add_odd_numbers($x, $y) {<br />
assert("!(($x % 2) && ($y % 2))");<br />
return ($x + $y);<br />
}<br />
$answer_one = add_odd_numbers(3, 5);<br />
$answer_two = add_odd_numbers(2, 4);<br />
echo "3 + 5 = $answer_one\n";<br />
echo "2 + 4 = $answer_two\n";<br />
?><br />
<br />
</source></div>
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