PHP array_walk() function
The array_walk( ) function is an inbuilt function of PHP. It is used to apply a user supplied function to every element of an array. This function was introduced in 4.0.
The array_walk( ) function returns true on success or false on failure.
The key a has the value youtube The key b has the value google The key c has the value whatsapp
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cricket and sachin have been paired together. hockey and sandeep have been paired together.
The key a has the value aajtak. The key b has the value zee news. The key c has the value ndtv.