Free buffer in php_verror even if it is empty

vspprintf allocates a buffer even if the resulting string is empty.

Merge branch 'PHP-7.4'

* PHP-7.4:
Fix resetting of internal_encoding and friends

Fix resetting of internal_encoding and friends

We need to update the value even if new_value is NULL. In particular,
it should be reset back to NULL after each request if the setting was

Fix resetting of internal_encoding and friends

We need to update the value even if new_value is NULL. In particular,
it should be reset back to NULL after each request if the setting was
not specified on startup. Otherwise we leave dangling pointers.

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Use clean shutdown on uncaught exception

Merge branch 'PHP-7.4'

* PHP-7.4:
Fix #78656: Parse errors classified as highest log-level

Merge branch 'PHP-7.3' into PHP-7.4

* PHP-7.3:
Fix #78656: Parse errors classified as highest log-level

Merge branch 'PHP-7.2' into PHP-7.3

* PHP-7.2:
Fix #78656: Parse errors classified as highest log-level

Fix #78656: Parse errors classified as highest log-level

Remove mention of PHP major version in Copyright headers

Closes GH-4732.

Enable display_startup_errors by default

Cleanup unnecessary if guard clause to free buffer.

Merge branch 'PHP-7.4'

Fixed bug #78406

Merge branch 'PHP-7.4'

Merge branch 'PHP-7.3' into PHP-7.4

Merge branch 'PHP-7.2' into PHP-7.3

Fix Zend signals unblocking

There are a few parts here:
* opcache should not be blocking signals while invoking compile_file,
otherwise signals may remain blocked on a compile er

Fix Zend signals unblocking

There are a few parts here:
* opcache should not be blocking signals while invoking compile_file,
otherwise signals may remain blocked on a compile error. While at
it, also protect SHM memory during compile_file.
* We should deactivate Zend signals at the end of the request, to make
sure that we gracefully recover from a missing unblock and signals
don't remain blocked forever.
* We don't use a critical section in deactivation, because it should
not be necessary. Additionally we want to clean up the signal queue,
if it is non-empty.
* Enable SIGG(check) in debug builds so we notice issues in the future.

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Merge branch 'PHP-7.4'

Deprecate allow_url_include

Merge branch 'PHP-7.4'

Revert "Avoid unused fstat() call"

This reverts commit 5a90dc77b8f244f603082aea022fadc0ce2c009c.

Let's try to go with the reverse direction here and actually trust
the reported

Revert "Avoid unused fstat() call"

This reverts commit 5a90dc77b8f244f603082aea022fadc0ce2c009c.

Let's try to go with the reverse direction here and actually trust
the reported size...

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Merge branch 'PHP-7.4'

Avoid unused fstat() call

If we're including a file via PHP streams, we're not going to trust
the reported file size anyway and populate in a loop -- so don't
bother determining the

Avoid unused fstat() call

If we're including a file via PHP streams, we're not going to trust
the reported file size anyway and populate in a loop -- so don't
bother determining the file size in the first place. Only do this
for non-tty HANDLE_FP now, which is the only case where this
information was used.

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Merge branch 'PHP-7.4'

Avoid double buffering in Zend streams

Disable buffering in PHP streams, to avoid storing and copying the
file contents twice.

This will call stream_set_option() on custom strea

Avoid double buffering in Zend streams

Disable buffering in PHP streams, to avoid storing and copying the
file contents twice.

This will call stream_set_option() on custom stream wrapper as
well, so the method needs to be implemented to avoid a warning.

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