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Upgrade/Install: Detect the presence of the native PHP JSON extension before updating.

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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]), the related polyfills and workarounds have been removed (see [46205-46206,46208]).

However, even though the JSON extension is now included in PHP by default, it is still possible to disable the extension in a custom configuration. This change will prevent sites from upgrading if the JSON extension is disabled to prevent compatibility issues.

Props jrf, jorbin, dd32, desrosj.
Fixes #47699.

git-svn-id: https://develop.svn.wordpress.org/trunk@46455 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Jonathan Desrosiers 2019-10-09 22:20:37 +00:00
parent 22d50c492d
commit 1bcd41b7c1
1 changed files with 13 additions and 0 deletions
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13
src/wp-admin/includes/update-core.php
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@ -1001,6 +1001,19 @@ function update_core( $from, $to ) {
);
}
// Add a warning when the JSON Extension is missing.
if ( ! extension_loaded( 'json' ) ) {
return new WP_Error(
'php_not_compatible',
sprintf(
/* translators: 1: WordPress version number, 2: The PHP Extension name needed. */
__( 'The update cannot be installed because WordPress %1$s requires the %2$s PHP Extension.' ),
$wp_version,
'JSON'
)
);
}
/** This filter is documented in wp-admin/includes/update-core.php */
apply_filters( 'update_feedback', __( 'Preparing to install the latest version…' ) );