The key() function simply returns the key of the array element that's currently being pointed to by the internal pointer. It does not move the pointer in any ...
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PHP Manual ¶ · Basic syntax · Types · Variables · Constants · Expressions · Operators · Control Structures · Functions ...
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There's a lot of multidimensional array_keys function out there, but each of them only merges all the keys in one flat array. Here's a way to find all the keys ...
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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.
User-defined functions · Function arguments · Returning values · Variable functions · Internal (built-in) functions · Anonymous functions · Arrow Functions · First ...
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PHP supports passing arguments by value (the default), passing by reference, and default argument values. Variable-length argument lists and Named Arguments are ...
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Function Reference ¶ · cURL — Client URL Library · Event · FTP · Gearman · LDAP — Lightweight Directory Access Protocol · Memcache · Memcached · mqseries ...
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An array. Return Values ¶. Returns the last key of array if the array is not empty; null otherwise.
Function and Method listing ¶. List of all the functions and methods in the manual. a b c d e f g h i j k l m n o p q r s t u v w x y z _.
Ignores value of array, compares only indexes. Example: array_diff_key, array_intersect_key. [suffix] **empty** - no "key" or "assoc" word in suffix. Compares ...
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