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Programming PHP
book

Programming PHP

by Rasmus Lerdorf, Kevin Tatroe
March 2002
Intermediate to advanced
528 pages
21h 29m
English
O'Reilly Media, Inc.
Content preview from Programming PHP

Name

prev

Synopsis

mixed prev(array array)

Moves the internal pointer to the element before its current location and returns the value of the element to which the internal pointer is now set. If the internal pointer is already set to the first element in the array, returns false. Be careful when iterating over an array using this function—if an array has an empty element or an element with a key value of 0, a value equivalent to false is returned, causing the loop to end. If an array might contain empty elements or an element with a key of 0, use the each( ) function instead of a loop with prev( ).

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Publisher Resources

ISBN: 1565926102Supplemental ContentCatalog PageErrata