In PHP, echo and print are used to output content, but there are the following differences: 1. echo is more efficient, 2. echo does not return any value, 3. echo can accept any number of parameters, 4. echo can output any data type, 5. There are subtle differences in syntax. For scenarios where efficiency is a priority, it is recommended to use echo.
The difference between echo and print
In PHP, both echo and print are used to output content on the page . However, there are some differences between the two:
1. Efficiency
echo is more efficient because it writes directly to the output buffer. Print, on the other hand, writes the content to an internal buffer before writing it to the output buffer. For large amounts of output, echo is significantly faster.
2. Return value
echo does not return any value, while print returns 1. This means it cannot be used in conditional expressions or variable assignments.
3. Number of parameters
echo can accept any number of parameters, while print can only accept one parameter.
4. Output type
echo can output any data type, including strings, numbers, arrays and other objects. print only allows output of strings.
5. Grammar
echo Grammar:
<code class="php">echo $variable; echo "Hello World";</code>
print Grammar:
<code class="php">print $variable; print("Hello World");</code>
Best Practices
Generally speaking, it is recommended to use echo in most situations because it is more efficient. However, if you need to get the output or force a value to be converted to a string, you can use print.
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