Posts Tagged with 'PHP'

PHP | Start array index from 1 To change the array index start from 1 instead of 0 can be done using array_unshift() and unset() function. array_unshift() Function The array_unshift() function inserts new elements to …

Last updated 1 year, 4 months ago | 1848 views

Tags:- PHP

PHP | Web Scraping Web scraping is used to get specific data from another website when there is no API available for it. There are many techniques for web scraping. You can read more about this …

Last updated 1 year, 6 months ago | 479 views

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Chart.JS | Draw Bar chart from server data using MySQL, Ajax, and PHP This example shows how to draw a bar chart with data from the database server.  FILE STRUCTURE At the end of this …

Last updated 1 year, 9 months ago | 3175 views

Tags:- HTML JQuery JavaScript PHP Chart Ajax PHP-MySQL

PHP | Warning: A non-numeric value encountered This error occurs when you are trying to do a mathematical operation on an integer with a nun-numeric value or a string.  Info: New E_WARNING and E_NOTICE errors …

Last updated 1 year, 12 months ago | 6554 views

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PHP | Comments A comment in PHP code is a line that is not executed as a part of the program. It's only read by someone who is looking at the code. By reading the comments …

Last updated 2 years ago | 551 views

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PHP | Case Sensitive In PHP, keywords (e.g. if, else, while, echo, etc.), classes, functions, and user-defined functions are not case-sensitive but all variable names are case-sensitive.   If you defined function name in lowercase, …

Last updated 2 years ago | 2321 views

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PHP | Syntax, and Tags PHP introduces a list of Tags to code PHP. PHP tags allow the PHP parsing engine to get in and get out from the PHP block. A PHP script can …

Last updated 2 years ago | 524 views

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PHP | Statement $x = 3 + "15%" + "$25"? The correct answer is 18. Here’s why: PHP is a  loosely typed language, therefore it does automatic type conversion based on the context in which …

Last updated 2 years ago | 480 views

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PHP | Array error fix | array_merge() The output will be as follows: array(2) { [0]=> int(1) [1]=> int(2) } NULL NULL It will also generate two warning messages as follows: Warning: array_merge(): Argument #2 …

Last updated 2 years ago | 490 views

Tags:- PHP

PHP | Output of the following statements var_dump(0123 == 123); var_dump('0123' == 123); var_dump('0123' === 123   var_dump(0123 == 123) This will output bool(false) because the leading 0 in 0123 tells the PHP interpreter to treat the …

Last updated 2 years ago | 609 views

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PHP | output of $a and $b once this code $a = '1'; $b = &$a; $b = "2$b" executed; Both $a and $b will output a string "21".   Because the statement $b = &$a; sets …

Last updated 2 years ago | 484 views

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PHP | Get URL with Parameter To get the full URL of a current page with GET parameters, we use the $_SERVER global variable. We need the current URL to perform different types of works. For …

Last updated 2 years, 3 months ago | 3097 views

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SQL | IN operator with PHP Array In this article we will use PHP Array with SQL IN operator. SQL IN operator allows us to specify multiple values in where clause. So in this article …

Last updated 2 years, 3 months ago | 1165 views

Tags:- PHP PHP-MySQL

PHP | file_exists( ) Function The file's existence can be confirmed using the file_exist() function which takes the file name as an argument. file_exist("abc.jpg")   The file_exists() function is an inbuilt function in PHP that …

Last updated 2 years, 5 months ago | 997 views

Tags:- PHP

PHP | check whether a number is even or odd A trick to check whether a number is even or odd without using any condition or loop.   <?php $arr=array("0"=>"Even","1"=>"Odd"); $check=13; echo "Your number is: ".$arr[$check%2]; …

Last updated 2 years, 5 months ago | 679 views

Tags:- PHP