Download PHP Functions Essential Reference by Greant Z., Merrall G., Gerken T. PDF

By Greant Z., Merrall G., Gerken T.

"PHP services crucial Reference is an in depth and functional functionality reference for the personal home page programming language. This operating programmer's advisor covers the middle functionality teams plus three hundred extra established personal home page capabilities, and information 800 extra features at the book's site, php-er.com. Written through operating builders and personal home page group leaders, this publication is filled with operating code that utilizers the wealthy number of capabilities on hand with personal home page. each functionality is supported by means of a number of examples that illustrate the functionality in motion. This consultant to Hypertext Preprocessor is a must have for any critical Hypertext Preprocessor programmer.

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Returns: 0 if the same; 1 or -1 if different Description: Compares the value of the first number with the value of the second number. The optional decimal-places argument specifies the number of decimal places to compare. For example, if the number of decimal places is 2 , bccomp () would compare to only two decimal places, regardless of how the numbers diverged beyond this level. The function returns 0 if the numbers are the same, 1 if the first number is greater than the second, or -1 if the second number is greater than the first.

Returns: Associative array; FAL SE if given an invalid argument Description: converts the keys of an array into values and the values into keys, in effect transposing the keys and values of the array. This works for both indexed arrays and associative arrays. a rra y_fli p() If va lues contains multiple elements with the same value—which would cause the resulting array to have multiple identical keys—only the value of the last of these duplicates is used, and previous elements are lost. ]) a rra y_1 First array to intersect a rra y_2 Second array to intersect .

Finally, you can use an empty subscript to assign to the array, in which case the new value will be appended to the array and assigned an integer key that is one larger than the largest previously existing integer key in that array, or 0 if there are no integer keys. The following example provides a simple illustration of some basic array operations. Example: Work with arrays / * C reate an array of use r information w ith default s, then fill i t with inf ormat ion. '; $ use r_inf o['firstna me'] = 'Joe'; $ use r_inf o['homedir '] = ' /home/joeluser' ; / * F illin g an index ed arr ay with the let ters of the English alpha bet.

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