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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User-defined functions · Function arguments · Returning values · Variable functions · Internal (built-in) functions · Anonymous functions · Arrow Functions · First ...
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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.
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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