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How To Convert Numbers to Strings
How To Convert Numbers to Strings? - PHP Script Tips - Understanding String Literals and Operations
✍: FYIcenter.com
In a string context, PHP will automatically convert any numeric value to a string. Here is a PHP script examples:
<?php print(-1.3e3); print("\n"); print(strlen(-1.3e3)); print("\n"); print("Price = $" . 99.99 . "\n"); print(1 . " + " . 2 . " = " . 1+2 . "\n"); print(1 . " + " . 2 . " = " . (1+2) . "\n"); print(1 . " + " . 2 . " = 3\n"); print("\n"); ?>
This script will print:
-1300 5 Price = $99.99 3 1 + 2 = 3 1 + 2 = 3
The print() function requires a string, so numeric value -1.3e3 is automatically converted to a string "-1300". The concatenation operator (.) also requires a string, so numeric value 99.99 is automatically converted to a string "99.99". Expression (1 . " + " . 2 . " = " . 1+2 . "\n") is a little bit interesting. The result is "3\n" because concatenation operations and addition operation are carried out from left to right. So when the addition operation is reached, we have "1 + 2 = 1"+2, which will cause the string to be converted to a value 1.
2007-04-20, 4778👍, 0💬
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