PHP 4.0 Bug #7906: Apache segfault in misterious circumstance

From: erubboli@alu-net.com Operating system: Linux Slackware 7.1 PHP version: 4.0.3pl1 PHP Bug Type: *General Issues Bug description: Apache segfault in misterious circumstance ##PHP ./configure --prefix=/www/php4 --with-config-file-path=/www/apache/conf/ --with-apxs=/www/apache/bin/apxs --with-gd=/www/libs/gd/ --with-mysql=/www/mysql/ --enable-trans-sid --enable-debug #APACHE ./configure --prefix=/www/apache/ --enable-module=all --enable-shared=max --server-uid=65534 --server-gid=65534 --disable-rule=SSL_COMPAT --enable-rule=SSL_SDBM Program received signal SIGSEGV, Segmentation fault. 0x402682da in ?? () (gdb) bt #0 0x402682da in ?? () #1 0x4028d23c in ?? () #2 0x4028d323 in ?? () #3 0x40259846 in ?? () #4 0x40259a9b in ?? () #5 0x4025bbb1 in ?? () #6 0x4025bbb1 in ?? () #7 0x4025bbb1 in ?? () #8 0x40267243 in ?? () #9 0x402763c9 in ?? () #10 0x40272fc1 in ?? () #11 0x40273881 in ?? () #12 0x402738b4 in ?? () #13 0x8055109 in ap_invoke_handler () #14 0x80698ff in process_request_internal () #15 0x8069966 in ap_process_request () #16 0x8060aa6 in child_main () #17 0x8060c81 in make_child () #18 0x8060dfc in startup_children () #19 0x806145d in standalone_main () #20 0x8061cac in main () #21 0x400b5577 in __libc_start_main () from /lib/libc.so.6 for example, this lines cause segfault: $a; //This is an array while(list($key,$val) each($a)){ if (is_int($key)){ ... } } but when i use this : while(list($key,$val) each($a)){ ' '.is_int($key); //without sense if (is_int($key)){ ... } } all goes correctly -- Edit Bug report at: http://bugs.php.net/?id=7906&edit=1