PHP 7 new features
PHP 7+ version has greatly improved performance. In some WordPress benchmark tests, the performance can reach 3 times that of PHP 5.6.
The new features of PHP 7+ version are shown in the following table:
| Serial number | Content |
|---|---|
| 1 | PHP scalar type and return value type declaration |
| 2 | PHP NULL merge operation Symbol |
| 3 | PHP spaceship operator (combination comparison operator) |
| 4 | PHP constant array |
| 5 | PHP anonymous class |
| 6 | PHP Closure::call() |
| 7 | PHP Filter unserialize() |
| PHP IntlChar() | |
| PHP CSPRNG | |
| PHP 7 Exception | |
| PHP 7 use statement | |
| PHP 7 error handling | |
| PHP intdiv() function | |
| PHP 7 Session Options | |
| PHP 7 Deprecated Features | |
| Extensions removed from PHP 7 | |
| SAPI removed from PHP 7 |
