What is the usage of the sprintf function in PHP?

1 year ago
Emily Johnson
1 minute

The sprintf function is used for formatting strings, where a formatted string is provided as the first parameter and the following parameters are replaced based on the placeholders in the formatted string.

In a formatted string, placeholders begin with a percentage sign (%) followed by one or more characters, indicating the type and format of the value to be replaced. Common placeholders include:

  1. %s: type string
  2. %d: integer type.
  3. %f: Floating point data type
  4. Character type: %c
  5. %b: Binary type
  6. O: Octal type
  7. %x: hexadecimal type

Can you please repeat what you just said?

Could you please repeat yourself?

$name = "John";
$age = 25;

// 使用%s和%d占位符将变量替换到字符串中
$result = sprintf("My name is %s and I am %d years old.", $name, $age);
echo $result;
// 输出：My name is John and I am 25 years old.

The return value of the sprintf function is a formatted string. It can be used to insert variables into a string, specifying the type and format of the variables being inserted.

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