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45 lines
1.2 KiB
PHP
45 lines
1.2 KiB
PHP
--TEST--
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Test array_shift() function : usage variations - call recursively
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--FILE--
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<?php
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/* Prototype : mixed array_shift(array &$stack)
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* Description: Pops an element off the beginning of the array
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* Source code: ext/standard/array.c
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*/
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/*
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* Use the result of one call to array_shift
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* as the the $stack argument of another call to array_shift()
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* When done in one statement causes strict error messages.
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*/
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echo "*** Testing array_shift() : usage variations ***\n";
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$stack = array ( array ( array ('zero', 'one', 'two'), 'un', 'deux'), 'eins', 'zwei');
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// not following strict standards
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echo "\n-- Incorrect Method: --\n";
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var_dump(array_shift(array_shift(array_shift($stack))));
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$stack = array (array( array('zero', 'one', 'two'), 'un', 'deux'), 'eins', 'zwei');
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// correct way of doing above:
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echo "\n-- Correct Method: --\n";
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$result1 = array_shift($stack);
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$result2 = array_shift($result1);
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var_dump(array_shift($result2));
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echo "Done";
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?>
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--EXPECTF--
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*** Testing array_shift() : usage variations ***
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-- Incorrect Method: --
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Strict Standards: Only variables should be passed by reference in %s on line %d
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Strict Standards: Only variables should be passed by reference in %s on line %d
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string(4) "zero"
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-- Correct Method: --
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string(4) "zero"
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Done
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