PHP :: Bug #19688 :: session_write

Bug #19688	session_write_close
Submitted:	2002-10-01 07:44 UTC	Modified:	2002-10-01 11:42 UTC
From:	peton at cavalex dot com	Assigned:
Status:	Closed	Package:	Session related
PHP Version:	4.2.3	OS:	Linux 2.4.19
Private report:	No	CVE-ID:	None

View Developer Edit

[2002-10-01 07:44 UTC] peton at cavalex dot com

Hi,

  I think there is a buffer output problem. 
  It seems to me that when you close the 
  current session with session_write_close(), 
  the buffer output will be deleted (not sent, 
  it is destroyed).
  To add the flush() function, even following by
  with a sleep() just before the session_write_close
  doesn't not resolve this problem.

  Another point is the behaviour with IE and Mozilla,
  the output is incorrect the first time, and correct
  (not always) next times (usually you need to restart
  IE/Mozilla to reobtain the problem).
  But, with wget and telnet, the output is always
  incorrect.

  Regards,  

  Nicolas


Configuration:
  Linux : 2.4.19
  Server: Apache/1.3.26 (Unix) PHP/4.2.3

PHP : --enable-trans-sid=yes 


Always with :
   telnet localhost 80 [ GET /bug_session.php HTTP/1.0 ]
   wget http://localhost/bug_session.php

At the first execution of this script !!!
   IE 6.0 / XP
   Mozilla / XP


Script bug_session.php, 
Sorry if the script is a bit long, the problem occurs 
in line 198 (of the output), which is uncompleted 
with telnet/wget :

<BR>197:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BRXXXXX
<BR>199:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX

and completly deleted with IE/Mozilla

<BR>197:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX <BR>199:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX

--------------------------------------------
<?php
session_start();
?>
<BR>1:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>2:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>3:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>4:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>5:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>6:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>7:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>8:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>9:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>10:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>11:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>12:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>13:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>14:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>15:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>16:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>17:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>18:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>19:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>20:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>21:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>22:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>23:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>24:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>25:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>26:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>27:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>28:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>29:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>30:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>31:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>32:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>33:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>34:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>35:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>36:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>37:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>38:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>39:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>40:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>41:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>42:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>43:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>44:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>45:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>46:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>47:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>48:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>49:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>50:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>51:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>52:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>53:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>54:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>55:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>56:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>57:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>58:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>59:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>60:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>61:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>62:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>63:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>64:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>65:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>66:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>67:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>68:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>69:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>70:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>71:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>72:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>73:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>74:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>75:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>76:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>77:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>78:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>79:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>80:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>81:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>82:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>83:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>84:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>85:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>86:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>87:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>88:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>89:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>90:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>91:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>92:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>93:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>94:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>95:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>96:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>97:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>98:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>99:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>100:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>101:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>102:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>103:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>104:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>105:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>106:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>107:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>108:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>109:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>110:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>111:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>112:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>113:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>114:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>115:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>116:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>117:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>118:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>119:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>120:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>121:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>122:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>123:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>124:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>125:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>126:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>127:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>128:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>129:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>130:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>131:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>132:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>133:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>134:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>135:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>136:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>137:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>138:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>139:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>140:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>141:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>142:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>143:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>144:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>145:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>146:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>147:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>148:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>149:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>150:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>151:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>152:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>153:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>154:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>155:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>156:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>157:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>158:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>159:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>160:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>161:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>162:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>163:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>164:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>165:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>166:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>167:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>168:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>169:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>170:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>171:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>172:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>173:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>174:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>175:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>176:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>177:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>178:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>179:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>180:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>181:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>182:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>183:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>184:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>185:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>186:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>187:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>188:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>189:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>190:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>191:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>192:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>193:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>194:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>195:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>196:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>197:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>198:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>199:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>200:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>201:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>202:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<BR>203:A SMALL TEXT XXXXXXXXXXXXXXXXXXXXXX
<?
session_write_close();

echo "<BR>SEE LINE 198.\n";
echo "<BR>THE END.\n";
?>
-------------------------------------------------

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[2002-10-01 10:36 UTC] yohgaki@php.net

Please try using this CVS snapshot:

  http://snaps.php.net/php4-latest.tar.gz
 
For Windows:
 
  http://snaps.php.net/win32/php4-win32-latest.zip

It works for me.

[2002-10-01 11:36 UTC] peton at cavalex dot com

Hi again,

[2002-10-01 11:39 UTC] peton at cavalex dot com

Hi again,

  I just tested with PHP-4.3.0-cvs, there is no problem.

  Best regards,

  Nicolas

[2002-10-01 11:42 UTC] iliaa@php.net

This bug has been fixed in CVS.

In case this was a PHP problem, snapshots of the sources are packaged
every three hours; this change will be in the next snapshot. You can
grab the snapshot at http://snaps.php.net/.
 
In case this was a documentation problem, the fix will show up soon at
http://www.php.net/manual/.

In case this was a PHP.net website problem, the change will show
up on the PHP.net site and on the mirror sites in short time.
 
Thank you for the report, and for helping us make PHP better.

user reports that the problem is no longer there in latest CVS, closing.

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