O'Reilly logo

Programming PHP, 3rd Edition by Peter MacIntyre, Kevin Tatroe, Rasmus Lerdorf

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

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().

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required