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Single quotes will not parse PHP variables inside of them. Either use double quotes or use a dot to extend the echo. $variableName = 'Ralph';echo 'Hello '.$variableName.'!'; OR. echo "Hello $variableName!"; And in your case: $i = 1;echo '<p class="paragraph'.$i.'"></p>';++i; OR.
30 cze 2011 · 1. Number one is the best option, it is readable and most likely the fastest despite PHP having to parse for variables (compared to multiple concatenation). The SO Question here demonstrates how concatenation can slow you down.
The following example shows how to output text and variables with the echo statement: Example. $txt1 = "Learn PHP"; $txt2 = "W3Schools.com"; echo "<h2>$txt1</h2>"; echo "<p>Study PHP at $txt2</p>"; Try it Yourself » Using Single Quotes. Strings are surrounded by quotes, but there is a difference between single and double quotes in PHP.
11 lis 2020 · The following examples show how different variables can be displayed by echo () and which output is generated exactly. Variables of the data type integer, float, string, boolean, and array can be displayed by echo (). Note: The output usually ends with “\n”, which is the character for a line break.
2 lut 2024 · The echo statement in PHP is a versatile tool used for displaying various types of content, including text, HTML markup, JavaScript code, and more. It efficiently handles the output of PHP variables and constants, seamlessly integrating PHP with HTML.
echo (string ...$expressions): void. Outputs one or more expressions, with no additional newlines or spaces. echo is not a function but a language construct. Its arguments are a list of expressions following the echo keyword, separated by commas, and not delimited by parentheses.
7 cze 2023 · One of the most commonly used functions in PHP is echo(), which is used to output one or more strings to the browser or command-line interface. Syntax echo string1, string2, ..., stringN; The echo() function can accept one or more strings as arguments, separated by commas. The strings can be enclosed in double or single quotes.
