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- --TEST--
- Test -N operator : various numbers as strings
- --FILE--
- <?php
- $strVals = array(
- "0","65","-44", "1.2", "-7.7", "abc", "123abc", "123e5", "123e5xyz", " 123abc", "123 abc", "123abc ", "3.4a",
- "a5.9"
- );
- foreach ($strVals as $strVal) {
- echo "--- testing: '$strVal' ---\n";
- try {
- var_dump(-$strVal);
- } catch (\TypeError $e) {
- echo $e->getMessage() . \PHP_EOL;
- }
- }
- ?>
- --EXPECTF--
- --- testing: '0' ---
- int(0)
- --- testing: '65' ---
- int(-65)
- --- testing: '-44' ---
- int(44)
- --- testing: '1.2' ---
- float(-1.2)
- --- testing: '-7.7' ---
- float(7.7)
- --- testing: 'abc' ---
- Unsupported operand types: string * int
- --- testing: '123abc' ---
- Warning: A non-numeric value encountered in %s on line %d
- int(-123)
- --- testing: '123e5' ---
- float(-12300000)
- --- testing: '123e5xyz' ---
- Warning: A non-numeric value encountered in %s on line %d
- float(-12300000)
- --- testing: ' 123abc' ---
- Warning: A non-numeric value encountered in %s on line %d
- int(-123)
- --- testing: '123 abc' ---
- Warning: A non-numeric value encountered in %s on line %d
- int(-123)
- --- testing: '123abc ' ---
- Warning: A non-numeric value encountered in %s on line %d
- int(-123)
- --- testing: '3.4a' ---
- Warning: A non-numeric value encountered in %s on line %d
- float(-3.4)
- --- testing: 'a5.9' ---
- Unsupported operand types: string * int
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