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PR #3317[1] is relevant for the migration guide, so we add a respective note in UPGRADING. [1] <https://github.com/php/php-src/pull/3317>
175 lines
5.3 KiB
Plaintext
175 lines
5.3 KiB
Plaintext
PHP 7.4 UPGRADE NOTES
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1. Backward Incompatible Changes
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2. New Features
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3. Changes in SAPI modules
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4. Deprecated Functionality
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5. Changed Functions
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6. New Functions
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7. New Classes and Interfaces
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8. Removed Extensions and SAPIs
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9. Other Changes to Extensions
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10. New Global Constants
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11. Changes to INI File Handling
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12. Windows Support
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13. Other Changes
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========================================
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1. Backward Incompatible Changes
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========================================
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- Date:
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. Calling var_dump() or similar on a DateTime(Immutable) instance will no
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longer leave behind accessible properties on the object.
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- Intl:
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. The default parameter value of idn_to_ascii() and idn_to_utf8() is now
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INTL_IDNA_VARIANT_UTS46 instead of the deprecated INTL_IDNA_VARIANT_2003.
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- Reflection:
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. Reflection objects will now generate an exception if an attempt is made
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to serialize them. Serialization for reflection objects was never
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supported and resulted in corrupted reflection objects. It has been
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explicitly prohibited now.
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- SPL:
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. Calling get_object_vars() on an ArrayObject instance will now always return
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the properties of the ArrayObject itself (or a subclass). Previously it
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returned the values of the wrapped array/object unless the STD_PROP_LIST
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flag was specified. Other affected operations are:
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* ReflectionObject::getProperties()
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* reset(), current(), etc. Use Iterator methods instead.
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* Potentially others working on object properties as a list.
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(array) casts are *not* affected. They will continue to return either the
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wrapped array, or the ArrayObject properties, depending on whether the
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STD_PROP_LIST flag is used.
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========================================
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2. New Features
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========================================
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- PDO_OCI:
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. PDOStatement::getColumnMeta is now available
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- PDO_SQLite:
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. PDOStatement::getAttribute(PDO::SQLITE_ATTR_READONLY_STATEMENT) allows to
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check whether this statement is read-only, i.e. whether it doesn't modify
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the database.
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========================================
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3. Changes in SAPI modules
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========================================
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========================================
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4. Deprecated Functionality
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========================================
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- Core:
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. Unbinding $this of a non-static method through a combination of
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ReflectionMethod::getClosure() and closure rebinding is deprecated. Doing
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so is equivalent to calling a non-static method statically, which has been
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deprecated since PHP 7.0.
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========================================
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5. Changed Functions
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========================================
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========================================
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6. New Functions
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========================================
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========================================
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7. New Classes and Interfaces
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========================================
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========================================
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8. Removed Extensions and SAPIs
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========================================
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========================================
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9. Other Changes to Extensions
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========================================
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- Hash:
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. The hash extension cannot be disabled anymore and is always an integral
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part of any PHP build, similar to the date extension.
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- Intl:
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. The Intl extension now requires at least ICU 50.1.
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- Libxml:
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. All libxml based extensions now require libxml 2.7.6 or newer.
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- Reflection:
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. Numeric value of class, property, function and constant modifiers was
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changed. Don't filter methods and properties through
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ReflectionClass::getMethods() and ReflectionClass::getProperties(), or test
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results of Reflection...::getModifiers(), using hard-coded numeric values.
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Use corresponding constants instead (e.g. ReflectionMethod::IS_PUBLIC).
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- SQLite3:
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. The bundled libsqlite has been removed. To build the SQLite3 and/or
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PDO_SQLite extensions a system libsqlite3 ≥ 3.5.0 is now required.
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- Zip:
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. The bundled libzip library has been removed. A system libzip >= 0.11 is now
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necessary to build the extension.
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========================================
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10. New Global Constants
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========================================
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- Tidy:
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. TIDY_TAG_ARTICLE
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. TIDY_TAG_ASIDE
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. TIDY_TAG_AUDIO
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. TIDY_TAG_BDI
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. TIDY_TAG_CANVAS
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. TIDY_TAG_COMMAND
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. TIDY_TAG_DATALIST
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. TIDY_TAG_DETAILS
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. TIDY_TAG_DIALOG
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. TIDY_TAG_FIGCAPTION
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. TIDY_TAG_FIGURE
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. TIDY_TAG_FOOTER
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. TIDY_TAG_HEADER
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. TIDY_TAG_HGROUP
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. TIDY_TAG_MAIN
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. TIDY_TAG_MARK
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. TIDY_TAG_MENUITEM
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. TIDY_TAG_METER
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. TIDY_TAG_NAV
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. TIDY_TAG_OUTPUT
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. TIDY_TAG_PROGRESS
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. TIDY_TAG_SECTION
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. TIDY_TAG_SOURCE
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. TIDY_TAG_SUMMARY
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. TIDY_TAG_TEMPLATE
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. TIDY_TAG_TIME
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. TIDY_TAG_TRACK
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. TIDY_TAG_VIDEO
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========================================
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11. Changes to INI File Handling
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========================================
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========================================
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12. Windows Support
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========================================
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- stat:
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. The stat implementation has been refactored.
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- An inode number is delivered and is based on the NTFS file index.
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- The device number is now based on the volume serial number.
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Note, that both values derived from the system and provided as is on 64-bit
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systems. On 32-bit system, these values might overflow the 32-bit integer in
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PHP, so they're a fake.
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========================================
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13. Other Changes
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========================================
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