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MDL-76362 various: Avoid passing nulls to functions that don't allow nulls

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PHP 8.1 is more strict on the parameter type. Functions such as trim(), strlen(), str_replace(), etc
show notice when null is passed as an argument
This commit is contained in:
Marina Glancy
2023-01-23 09:16:06 +08:00
committed by Andrew Nicols
parent d83368a475
commit 2dd7290ccb
69 changed files with 105 additions and 102 deletions
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lib/tablelib.php
+1 -1
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@@ -1463,7 +1463,7 @@ class flexible_table {
// Load any existing user preferences.
if ($this->persistent) {
$this->prefs = json_decode(get_user_preferences('flextable_' . $this->uniqueid), true);
$this->prefs = json_decode(get_user_preferences('flextable_' . $this->uniqueid) ?? '', true);
$oldprefs = $this->prefs;
} else if (isset($SESSION->flextable[$this->uniqueid])) {
$this->prefs = $SESSION->flextable[$this->uniqueid];