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Avoid warnings due to unmatched capture groups

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If the non-capturing group which contains the last two capture groups of
the expression is not matched, the indexes are not defined in the match
result, causing a warning.  Avoid this using isset() before access.

Signed-off-by: Kevin Locke <kevin@kevinlocke.name>
This commit is contained in:
Kevin Locke
2016-06-30 15:39:15 -07:00
parent 5b7e9a80ff
commit ac43107187
1 changed files with 2 additions and 2 deletions
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4
pg4wp/driver_pgsql_install.php
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@ -57,8 +57,8 @@
$logto = 'SHOWCOLUMN'; $logto = 'SHOWCOLUMN';
$full = $matches[1]; $full = $matches[1];
$table = $matches[2]; $table = $matches[2];
$like = $matches[3]; $like = isset($matches[3]) ? $matches[3] : FALSE;
$where = $matches[4]; $where = isset($matches[4]) ? $matches[4] : FALSE;
// Wrap as sub-query to emulate WHERE behavior // Wrap as sub-query to emulate WHERE behavior
$sql = ($where ? 'SELECT * FROM (' : ''). $sql = ($where ? 'SELECT * FROM (' : '').
'SELECT column_name as "Field", 'SELECT column_name as "Field",