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Video : how to connect to a MySQL database using PHP

November 14, 2014

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Video : Connect to a MySQL Database

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PHP Break and Continue Statements

Sometimes you may want to let the loops start without any condition, and allow the statements inside the brackets to decide when to exit the loop. There are two special statements that can be used inside loops: Break and Continue. The Break statement terminates the current While or For loop and continues executing the code that follows after the loop (if any). Optionally, you can put a number after the Break keyword indicating how many levels of loop structures to break out of. In this way, a statement buried deep in nested loops can break out of the outermost loop. Examples below show how to use the Break statement: <?php echo "Example of using the Break statement: "; for ($i=0; $i<=7; $i++) { if ($i==3){ break; } echo "The number is ".$i; echo " "; } echo "One more example of using the Break statement: "; ...

PHP Syntax

A PHP scripting block always starts with <?php and ends with ?> . A PHP scripting block can be placed anywhere in the document . On servers with shorthand support enabled you can start a scripting block with <? ?> . For maximum compatibility, we recommend that you use the standard form (<?php ) rather than the shorthand form. Standard tags “<?php ?> ”; Short tags “ <? ?> ”; A PHP file normally contains HTML tags, just like an HTML file, and some PHP scripting code. Below, we have an example of a simple PHP script which sends the text "Hello World" to the browser: <html> <body> <?php echo "Hello World"; ?> </body> </html> Each code line in PHP must end with a semi...

PHP Floating Point Numbers

PHP recognizes two types of floating point numbers. The first is a simple numeric literal with a decimal point. The second is a floating-point number written in scientific notation. Scientific notation takes the form of [number]E[exponent], for example, 1.75E-2. Some examples of valid floating point numbers include: 3.14 0.001 -1.234 0.314E2 // 31.4 1.234E-5 // 0.00001234 -3.45E-3 // -0.00345 Example : The PHP var_dump() function returns the data type and value of variables: <?php $x = 10.365; var_dump($x); echo " "; ?>

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Video : how to connect to a MySQL database using PHP

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