See Also ¶. array_is_list() - Checks whether a given array is a list; is_float() - Finds whether the type of a variable is float; is_int() - Find whether ...
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Compares values only. Ignores indexes of array. Example: array_diff, array_intersect. [prefix] u - will do comparison with user defined function. Letter u can ...
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Notes ¶. Note: array() is a language construct used to represent literal arrays, and not a regular function.
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Arrays ¶. An array in PHP is actually an ordered map. A map is a type that associates values to keys. This type is optimized for several different uses; ...
Arrays ¶ · Introduction · Installing/Configuring · Requirements · Installation · Runtime Configuration · Predefined Constants · Sorting Arrays · Array Functions.
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Prior to PHP 8.0.0, a string needle will match an array value of 0 in non-strict mode, and vice versa. That may lead to undesireable results. Similar edge cases ...
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Returns an array containing the results of applying the callback function to the corresponding value of array (and arrays if more arrays are provided) used as ...
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A URL can be used as a filename with this function if the fopen wrappers have been enabled. See fopen() for more details on how to specify the filename. See the ...
Returns the key for needle if it is found in the array, false otherwise. If needle is found in haystack more than once, the first matching key is returned. To ...
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array_key_exists() returns true if the given key is set in the array. key can be any value possible for an array index. Parameters ¶. key. Value to check.