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All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '$debug_args'.

All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '$end'.

Use placeholders and $wpdb->prepare(); found $sql

Unescaped parameter $sql used in $wpdb->get_row($wpdb->prepare( $sql, $cache_key, $group ))\n$sql assigned unsafely at line 80:\n $sql = "\n\t\t\tSELECT `cache_value`, `expiration`\n\t\t\tFROM `{$table}`\n\t\t\tWHERE `cache_key` = %s AND `cache_group` = %s\n\t\t\tLIMIT 1\n\t\t"\n$table assigned unsafely at line 78:\n $table = $this->table()

Use placeholders and $wpdb->prepare(); found $sql

Unescaped parameter $sql used in $wpdb->query($wpdb->prepare( $sql, $cache_key, $group ))\n$sql assigned unsafely at line 141:\n $sql = "\n\t\t\t\tDELETE FROM `{$table}`\n\t\t\t\tWHERE `cache_key` = %s AND `cache_group` = %s\n\t\t\t"\n$table assigned unsafely at line 134:\n $table = $this->table()

Missing "License" in Plugin Header. Please update your Plugin Header with a valid GPLv2 (or later) compatible license.

All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '$start'.

Use placeholders and $wpdb->prepare(); found $sql

Unescaped parameter $sql used in $wpdb->query($wpdb->prepare( $sql, $cache_key, $group, $cache_value, $expires_at ))\n$sql assigned unsafely at line 156:\n $sql = "\n\t\t\t\tREPLACE INTO `{$table}`\n\t\t\t\t( `cache_key`, `cache_group`, `cache_value`, `expiration` )\n\t\t\t\tVALUES ( %s, %s, %s, %d )\n\t\t\t"\n$table assigned unsafely at line 134:\n $table = $this->table()