Warning: Cannot modify header information - headers already sent by ★★

エラーメッセージ

　状態:- 　閲覧数:2,700 　投稿日:2009-05-30 　更新日:2014-03-14 　

・header 前で出力を行っている echo や print をコメントアウト

類似度ページランキング

順位	ページタイトル抜粋	％
1	Warning: Cannot modify header information - headers already sent by	31
2	( ! ) Warning: Declaration of xxxx should be compatible with	28
3	Warning: Division by zero	27
4	Fatal error: Call-time pass-by-reference has been removed in	27
5	Fatal error: Uncaught Error: Call to a member function modify() on string	27
6	Notice: Constant	26
7	#1548 - Cannot load from mysql.proc. The table is probably corrupted	26
8	SHA-1(Secure Hash Algorithm 1)	26
9	Message: Undefined variable: ○○	26
10	Maximum function nesting level of '256' reached	26
11	Fatal error: Uncaught Error: Call to undefined function bcsub()	26
12	Sorry, that page does not exist.	25
13	Warning: array_rand() [function.array-rand]: Second argument has to be between 1	25
14	SessionHandler::gc	25
15	Invalid parameter number: parameter was not defined	25
16	Fatal error: Class declarations may not be nested in ○○ on △△	24
17	Warning: PDO::query(): LOAD DATA LOCAL INFILE forbidden	24
18	Deprecated: Assigning the return value of new by reference is deprecated	24
19	#1016 - Can't open file: './database_name/#sql-38f_36aa.frm' (errno: 24)	24
20	session.gc_maxlifetime	24
	2026/4/24 10:57 更新

週間人気ページランキング／ 4-17 → 4-23