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--TEST--
Test array_flip() function : usage variations - 'input' argument with different valid values
--FILE--
<?php
/* Prototype : array array_flip(array $input)
* Description: Return array with key <-> value flipped
* Source code: ext/standard/array.c
*/
/*
* In 'input' array argument, values are expected to be valid keys i.e. string/integer
* here testing for all different valid string and integer values
*/
echo "*** Testing array_flip() : different valid values in 'input' array argument ***\n";
$empty_heredoc = <<<EOT1
EOT1;
$simple_heredoc = <<<EOT4
simple
EOT4;
$multiline_heredoc = <<<EOT7
multiline heredoc with 123 and
speci@! ch@r$..checking\nwith\talso
EOT7;
$input = array(
// numeric values
'int_value' => 1,
'negative_value' => -2,
'zero_value' => 0,
'octal_value' => 012,
'hex_value' => 0x23,
// single quoted string value
'empty_value1' => '',
'space_value1' => ' ',
'char_value1' => 'a',
'string_value1' => 'string1',
'numeric_value1' => '123',
'special_char_value1' => '!@#$%',
'whitespace1_value1' => '\t',
'whitespace2_value1' => '\n',
'null_char_value1' => '\0',
// double quoted string value
'empty_value2' => "",
'space_value2' => " ",
'char_value2' => "b",
'string_value2' => "string2",
'numeric_value2' => "456",
'special_char_value2' => "^&*",
'whitespace1_value2' => "\t",
'whitespace2_value2' => "\n",
'null_char_value2' => "\0",
'binary_value' => "a".chr(0)."b",
// heredoc string value
'empty_heredoc' => $empty_heredoc,
'simple_heredoc' => $simple_heredoc,
'multiline_heredoc' => $multiline_heredoc,
);
var_dump( array_flip($input) );
echo "Done"
?>
--EXPECTF--
*** Testing array_flip() : different valid values in 'input' array argument ***
array(24) {
[1]=>
string(9) "int_value"
[-2]=>
string(14) "negative_value"
[0]=>
string(10) "zero_value"
[10]=>
string(11) "octal_value"
[35]=>
string(9) "hex_value"
[""]=>
string(13) "empty_heredoc"
[" "]=>
string(12) "space_value2"
["a"]=>
string(11) "char_value1"
["string1"]=>
string(13) "string_value1"
[123]=>
string(14) "numeric_value1"
["!@#$%"]=>
string(19) "special_char_value1"
["\t"]=>
string(18) "whitespace1_value1"
["\n"]=>
string(18) "whitespace2_value1"
["\0"]=>
string(16) "null_char_value1"
["b"]=>
string(11) "char_value2"
["string2"]=>
string(13) "string_value2"
[456]=>
string(14) "numeric_value2"
["^&*"]=>
string(19) "special_char_value2"
[" "]=>
string(18) "whitespace1_value2"
["
"]=>
string(18) "whitespace2_value2"
[" "]=>
string(16) "null_char_value2"
["a b"]=>
string(12) "binary_value"
["simple"]=>
string(14) "simple_heredoc"
["multiline heredoc with 123 and
speci@! ch@r$..checking
with also"]=>
string(17) "multiline_heredoc"
}
Done