PHP

The Object Oriented Programming (OOPs) is a most powerful programming concept. The PHP will support OOPs, using the OOPs concept we can simplify actual normal code writing. The below is the slides of Object Oriented Programming basic concepts used in PHP.

The Binary OrderMark(BOM) is the hidden secret code used for securing the data transfer via REST services. Commonly this BOM details available starting of each string(Commonly exist in first 3 characters). But will saving in Database or processing we no need this code. So we can strip from actual code.

The function jsondecode() function will help convert a json formatted string into JSON object. Using this object we can access its key value pairs of JSON content. Some cases we cannot create JSON object from the string. Below are possible reasons of cannot create JSON objects.

TCPDF is a PDF library for generating PDF for given content. The Library is open source available on https://tcpdf.org/. We can download that library to create PDF for our need. This article will demonstrate how to change default font style of TCPDF library with our custom TTF font file.

The below is the sample code for strip a particular HTML element from given string HTML. Using this function we can able to get particular div, span, p, body, article,.. any HTML wrapped element by its class or id. This function accepts 4 parameters, HTML string to get particular Tag, Strip tag name, Identifier name Class or Id and Identifier Class name or Id name.

In PHP we can able to slice an Array into small chunks. To chunk array, there is a function called array_slice(). This function will accept splitting array with Limit and offset of the slice. It will split array into given limit from the offset of starting.

The below function will help us to Strip given HTML tag to strip from HTML string. In this function, we can able to pass the starting and ending tags of the specific string enclosed.

The PHP function number_format() is the function is used to format the given number in a specific format. The below example will show how to format the given number with decimal points. The number_format() will accept 3 parameters as defined below,

Array - Array is a structure in which it stores multiple values in a single variable. It can be classified into three types say numeric ,associative and multidimensional array.

We can able to strip HTML tags from string in PHP by calling the function preg_replace(). It will compare tags by regular expression and strip from formatted string HTML.

In HTML normal special characters are considered as entities. So normally these are encoded as string. Normally &, <, >, ‘ and “ are special symbols. In PHP we can able to encode special symbols into HTML entity vice versa able to decode HTML entities into special symbols.

JSON - Javascript Object Notation.It's a lightweight data interchange format and also a subset of javascript programming language.Json is language independent.It is has hierarchical values.Easy to read and write.

Array pop() function is used to delete the last element in an array. Array push() function is used to insert the element in the array

Implode is a function used in php which is used to form a string from an element of array. Syntax: implode(“, ”,$string);

Explode is function used in php which is used to split the string into array. Return an array format of substring of a defined string. Syntax: explode( $delimiter,$string,$limit);

In Pass by value the argument values are affected only locally with in the function where as in Pass by reference the argument values affected globally (i.e outside the function).

Everyone knows php is Hypertext Preprocessor.Its actually means Personal home page.Its a server side scripting language used to develop dynamic web pages.