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[web] PHP syntax question

Started by demonkoryu Apr 4, 2006 at 5:37 AM 2 replies 850+ views

Original Post

131

Apr 4, 2006 at 5:37 AM

Hi, I have a little question about a fragment of PHP I found on the net. Please don't bash me for not doing proper research, but I have a deadline to meet this evening and can't spend much time on language details, so here goes... $dir = ( $path { strlen( $path ) - 1 } == '/' ) ? substr( $path, 0, strlen( $path ) - 1 ) : dirname( $path ); What's that syntax element called where a variable ($path) is followed with a set of braces {}? Is it an index? Sorry for the dumb question, I'm a PHP newbie.

dave

322

dave

Apr 4, 2006 at 5:39 AM

Hey bud,

Looks to me like a regular expression, in place, in the code.

Dave

demonkoryu

Author

131

demonkoryu

Apr 4, 2006 at 5:49 AM

Hey Dave,

I'm a stupid noob:

Quote:

String access and modification by character

Characters within strings may be accessed and modified by specifying the zero-based offset of the desired character after the string in curly braces.

Note: For backwards compatibility, you can still use array-brackets for the same purpose. However, this syntax is deprecated as of PHP 4.

Example 11-5. Some string examples
// Get the first character of a string $str = 'This is a test.'; $first = $str{0}; // Get the third character of a string $third = $str{2}; // Get the last character of a string. $str = 'This is still a test.'; $last = $str{strlen($str)-1}; // Modify the last character of a string $str = 'Look at the sea'; $str{strlen($str)-1} = 'e'; ?>

From the PHP manual.

It's old syntax for characterwise string access.

Thanks for your help though, ++rating

An exception was thrown in Konfusius.exe: !! ace_lovegrove->rating: index out of bounds !!

Hmm... yeah, back to work.

dave

322

dave

Apr 4, 2006 at 5:57 AM

Hey man,

Sorry, although i know some PHP im in noway as competant in it as i am at C++, you learn something every day.

P.S. My rating hardly ever moves now!

Dave

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