August 2000
Intermediate to advanced
800 pages
13h 15m
English
Content preview from Core PHP Programming: Using PHP to Build Dynamic Web SitesBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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True and False
As you remember from Chapter 2, PHP has the concepts of true and false. Zero and an empty string are considered to be false. Any other numerical value or string is true. These concepts were discussed in regard to relational operators, but they are also used in control statements. Control statements like if expect a boolean value, so any value they are given will be converted to a boolean.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.