Read e-book online php|architect's Zend PHP 5 Certification Study Guide PDF
By Davey Shafik
Zend's new Hypertext Preprocessor five Certification examination characterize a good device for pro personal home page builders who are looking to distinguish themselves of their box. php|architect's Zend Hypertext Preprocessor five Certification research advisor, edited and produced by means of the publishers of php|architect journal, offers the main entire and thorough coaching device for builders who desire to take the examination. This publication offers entire insurance of each subject that's a part of the examination, together with:
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Extra info for php|architect's Zend PHP 5 Certification Study Guide
The error_reporting directive determines which errors are reported by PHP. A series of built-in constants allow you to prevent PHP from reporting errors beneath a certain pre-defined level. For example, the following allows for the reporting of all errors, except notices: error_reporting=E_ALL & ~E_NOTICE 34 ” PHP Basics i Error reporting can also be changed dynamically from within a script by calling the error_reporting() function. The display_errors and log_errors directives can be used to determine how errors are reported.
Array Basics All arrays are ordered collections of items, called elements. Each element has a value, and is identified by a key that is unique to the array it belongs to. As we mentioned in the previous paragraph, keys can be either integer numbers or strings of arbitrary length. Arrays are created one of two ways. The first is by explicitly calling the array() construct, which can be passed a series of values and, optionally, keys: $a $a $a $a = = = = array (10, 20, 30); array (’a’ => 10, ’b’ => 20, ’cee’ => 30); array (5 => 1, 3 => 2, 1 => 3,); array(); The first line of code above creates an array by only specifying the values of its three elements.
PHP has some excellent facilities for dealing with errors that provide an excellent level of fine-grained control over how errors are thrown, handled and reported. Proper error management is essential to writing applications that are both stable and capable of detecting when the inevitable problem arises, thus handling failure in a graceful manner. i In this chapter, we only cover PHP’s traditional facilities for error management in procedural code. PHP 5’s new object-oriented error management is discussed in the Object-oriented Programming in PHP chapter.
php|architect's Zend PHP 5 Certification Study Guide by Davey Shafik