Using the canonical function name for PHP functions is strongly recommended, as aliases may be deprecated or removed without (much) warning.
This replaces all uses of the following:
* `join()` with `implode()`
* `sizeof()` with `count()`
* `is_writeable()` with `is_writable()`
* `doubleval()` with a `(float)` cast
In part, this is a follow-up to #47746.
Props jrf.
See #50767.
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The tag was supported in phpDocumentor 1.x, but is no longer supported in 2.x and 3.x.
Usage of static variables is considered an internal implementation detail and has no information value for someone reading the docs.
Props alishanvr, jrf.
Fixes#50426.
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The PHP native JSON extension has been bundled and compiled with PHP by default since version 5.2.0. Because the minimum version of PHP required by WordPress is now 5.6.20 (see #46594 and [45058]), JSON extension related polyfills and backwards compatibility code can now be removed.
This change removes the `json_last_error_msg()` and `JsonSerializable` polyfills included in WordPress for full JSON extension support in PHP < 5.6.
Follow up of [46205-46206].
See #47699.
Props jrf, Clorith, pento.
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As of PHP 5.3, the SPL extension cannot be disabled, so we no longer need this polyfill.
The file is kept with a `_deprecated_file()` call, to alert any plugins or themes that may be loading it directly.
Props jrf, ayeshrajans.
See #47698, #46630.
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Noteable changes:
- The `magic_quotes_runtime` and `magic_quotes_sybase` settings were removed in PHP 5.4, so no longer need to be set.
- Some functions that use external libraries can generate errors that can't be tested for, so are globally allowed to silence errors.
- Quite a few functions would cause errors if `safe_mode` was set. This setting was removed in PHP 5.4.
- Only a handful of `header()` calls needed corresponding `headers_sent()` checks for unit tests to pass, but more may need to be added as the nightlies builds are tested.
See #46732.
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This adds a pure PHP implementation of the cryptographic functions supported in PHP 7.2+. It provides the necessary backwards compatibility required to support signature verification and other security features going forward across all supported PHP versions.
Props paragoninitiativeenterprises
Fixes#45806. See #39309.
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The WPCS `WordPress.WhiteSpace.PrecisionAlignment` rule throws warnings for a bunch of code that will likely cause issues for `wpcbf`. Fixing these manually beforehand gives us better auto-fixed results later.
See #41057.
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The `__autoload()` function is deprecated in PHP 7.2, which means WordPress' own `__autoload()` compat function for PHP 5.2 needs to be moved into a separate file to prevent the PHP 7.2 compiler from complaining.
Props ayeshrajans
See #40109
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[37748] introduced `_wp_expand_nav_menu_post_data()` together with an `array_replace_recursive()` compatibility function for PHP 5.2.
Even though that compat function is tried and tested in other projects like BuddyPress, we need to add additional `isset()` checks in order to avoid 'Undefined index' notices in our case.
See #36590.
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[36510] allowed larger menus to be created in the Edit Menu screen by JSON-encoding the entire form into a single input field. However, it did not correctly handle nested arrays.
This introduces a new `_wp_expand_nav_menu_post_data()` helper function to handle this POST data which uses `array_replace_recursive()` internally. Since the latter is only available on PHP 5.3+, we add a compatibility function to ensure PHP 5.2 support.
Props ericlewis, neverything, swissspidy.
Fixes#36590 for trunk. See #14134.
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`random_compat` offers a set of compatible functions for older versions of PHP, filling in the gap by using other PHP extensions when available.
We still include our existing `wp_rand()` functionality as a fallback for when no proper CSPRNG exists on the system.
Take Two, this was previously committed in [34922] but had an issue on PHP 5.2 which sarciszewski has now resolved.
Props sarciszewski
See #28633
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`random_compat` offers a set of compatible functions for older versions of PHP, filling in the gap by using other PHP extensions when available.
We still include our existing `wp_rand()` functionality as a fallback for when no proper CSPRNG exists on the system.
Props sarciszewski
See #28633
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In PHP 5.3.0, `is_a()` is no longer deprecated, and will therefore no longer throw `E_STRICT` warnings.
To avoid warnings in PHP < 5.3.0, convert all `is_a()` calls to `$var instanceof WP_Class` calls.
`instanceof` does not throw any error if the variable being tested is not an object, it simply returns `false`.
Props markoheijnen, wonderboymusic.
Fixes#25672.
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