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54 lines
1.2 KiB
PHP
54 lines
1.2 KiB
PHP
--TEST--
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Test prev() function : basic functionality
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--FILE--
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<?php
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/* Prototype : mixed prev(array $array_arg)
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* Description: Move array argument's internal pointer to the previous element and return it
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* Source code: ext/standard/array.c
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*/
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/*
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* Test basic functionality of prev()
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*/
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echo "*** Testing prev() : basic functionality ***\n";
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$array = array('zero', 'one', 'two');
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end($array);
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echo key($array) . " => " . current($array) . "\n";
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var_dump(prev($array));
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echo key($array) . " => " . current($array) . "\n";
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var_dump(prev($array));
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echo key($array) . " => " . current($array) . "\n";
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var_dump(prev($array));
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echo "\n*** Testing an array with differing values/keys ***\n";
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$array2 = array('one', 2 => "help", 3, false, 'stringkey2' => 'val2', 'stringkey1' => 'val1');
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end($array2);
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$length = count($array2);
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for ($i = $length; $i > 0; $i--) {
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var_dump(prev($array2));
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}
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?>
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===DONE===
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--EXPECTF--
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*** Testing prev() : basic functionality ***
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2 => two
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string(3) "one"
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1 => one
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string(4) "zero"
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0 => zero
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bool(false)
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*** Testing an array with differing values/keys ***
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string(4) "val2"
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bool(false)
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int(3)
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string(4) "help"
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string(3) "one"
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bool(false)
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===DONE===
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