Utility class for testing and manipulation of PHP arrays.
Declared abstract, as we have no need for instantiation.
Test whether an array contains one or more string keys
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Return type: | bool |
Test whether an array contains one or more integer keys
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Return type: | bool |
Test whether an array contains one or more numeric keys.
A numeric key can be one of the following: - an integer 1, - a string with a number ‘20’ - a string with negative number: ‘-1000’ - a float: 2.2120, -78.150999 - a string with float: ‘4000.99999’, ‘-10.10’
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Return type: | bool |
Test whether an array is a list
A list is a collection of values assigned to continuous integer keys starting at 0 and ending at count() - 1.
For example: <code> $list = array( ‘a’,’b’,’c’,’d’ ); $list = array(
0 => ‘foo’, 1 => ‘bar’, 2 => array( ‘foo’ => ‘baz’ ),
); </code>
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Return type: | bool |
Test whether an array is a hash table.
An array is a hash table if:
For example: <code> $hash = array(
‘foo’ => 15, ‘bar’ => false,
); $hash = array(
1995 => ‘Birth of PHP’, 2009 => ‘PHP 5.3.0’, 2012 => ‘PHP 5.4.0’,
); $hash = array(
‘formElement, ‘options’ => array( ‘debug’ => true ),
); </code>
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Return type: | bool |
Checks if a value exists in an array.
Due to “foo” == 0 === TRUE with in_array when strict = false, an option has been added to prevent this. When $strict = 0/false, the most secure non-strict check is implemented. if $strict = -1, the default in_array non-strict behaviour is used.
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Return type: | bool |
Convert an iterator to an array.
Converts an iterator to an array. The $recursive flag, on by default, hints whether or not you want to do so recursively.
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Throws ExceptionInvalidArgumentException: | |
if $iterator is not an array or a Traversable object |
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Return type: | array |
Merge two arrays together.
If an integer key exists in both arrays, the value from the second array will be appended the the first array. If both values are arrays, they are merged together, else the value of the second array overwrites the one of the first array.
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Return type: | array |