Ubuntu 26.04系统下宝塔控制面板安装PHP7.4失败的说明

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Ubuntu系统更新到了26.04版本，前几天安装了Ubuntu26.04 (Resolute Raccoon) x86_64(Py3.7.16)版本，然而安装PHP7.4竟然失败，错误如下所示

Ubuntu 26.04系统下宝塔控制面板安装PHP7.4失败的说明

去宝塔论坛看了一下，出现这个错误的不光一人，有很多人都有这个问题，都是安装PHP7.4的时候提示安装失败，多次尝试均按照失败，尝试过编译安装和极速安装；

主要还是兼容问题造成的，毕竟PHP7.4PHP官方已经停止维护，Ubuntu26是今年5月份推出的新系统，如非要使用PHP7.4建议降级系统到Ubuntu24版本；

安装PHP7.4出现的错误如下所示

/www/server/php/74/src/ext/libxml/libxml.c: In function ‘_php_libxml_external_entity_loader’:
/www/server/php/74/src/ext/libxml/libxml.c:711:41: warning: ‘context’ is deprecated [-Wdeprecated-declarations]
711 | pib->context = stream;
| ^~~
/usr/include/libxml2/libxml/xmlIO.h:127:28: note: declared here
127 | void* context XML_DEPRECATED_MEMBER;
| ^~~~~~~
/www/server/php/74/src/ext/libxml/libxml.c:712:41: warning: ‘readcallback’ is deprecated [-Wdeprecated-declarations]
712 | pib->readcallback = php_libxml_streams_IO_read;
| ^~~
/usr/include/libxml2/libxml/xmlIO.h:128:28: note: declared here
128 | xmlInputReadCallback readcallback XML_DEPRECATED_MEMBER;
| ^~~~~~~~~~~~
/www/server/php/74/src/ext/libxml/libxml.c:713:41: warning: ‘closecallback’ is deprecated [-Wdeprecated-declarations]
713 | pib->closecallback = php_libxml_streams_IO_close;
| ^~~
/usr/include/libxml2/libxml/xmlIO.h:129:28: note: declared here
129 | xmlInputCloseCallback closecallback XML_DEPRECATED_MEMBER;
| ^~~~~~~~~~~~~
/www/server/php/74/src/ext/libxml/libxml.c: In function ‘php_libxml_shutdown’:
/www/server/php/74/src/ext/libxml/libxml.c:826:17: warning: ‘xmlRelaxNGCleanupTypes’ is deprecated: See https://gnome.pages.gitlab.gnome.org/libxml2/html/deprecated.html [-Wdeprecated-declarations]
826 | xmlRelaxNGCleanupTypes();
| ^~~~~~~~~~~~~~~~~~~~~~
In file included from /www/server/php/74/src/ext/libxml/libxml.c:41:
/usr/include/libxml2/libxml/relaxng.h:122:21: note: declared here
122 | xmlRelaxNGCleanupTypes (void);
| ^~~~~~~~~~~~~~~~~~~~~~
/www/server/php/74/src/ext/libxml/libxml.c: In function ‘zm_startup_libxml’:
/www/server/php/74/src/ext/libxml/libxml.c:920:54: error: ‘php_libxml_output_buffer_create_filename’ undeclared (first use in this function); did you mean ‘php_libxml_input_buffer_create_filename’?
920 | xmlOutputBufferCreateFilenameDefault(php_libxml_output_buffer_create_filename);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| php_libxml_input_buffer_create_filename
/www/server/php/74/src/ext/libxml/libxml.c:920:54: note: each undeclared identifier is reported only once for each function it appears in
/www/server/php/74/src/ext/libxml/libxml.c: In function ‘zm_activate_libxml’:
/www/server/php/74/src/ext/libxml/libxml.c:933:54: error: ‘php_libxml_output_buffer_create_filename’ undeclared (first use in this function); did you mean ‘php_libxml_input_buffer_create_filename’?
933 | xmlOutputBufferCreateFilenameDefault(php_libxml_output_buffer_create_filename);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| php_libxml_input_buffer_create_filename
/www/server/php/74/src/ext/libxml/libxml.c: In function ‘zif_libxml_use_internal_errors’:
/www/server/php/74/src/ext/libxml/libxml.c:1032:48: warning: comparison of distinct pointer types lacks a cast
1032 | if (current_handler && current_handler == php_libxml_structured_error_handler) {
| ^~
/www/server/php/74/src/ext/libxml/libxml.c:1050:49: warning: passing argument 2 of ‘xmlSetStructuredErrorFunc’ from incompatible pointer type [-Wincompatible-pointer-types]
1050 | xmlSetStructuredErrorFunc(NULL, php_libxml_structured_error_handler);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| |
| void (*)(void *, xmlError *) {aka void (*)(void *, struct _xmlError *)}
In file included from /usr/include/libxml2/libxml/valid.h:19,
from /usr/include/libxml2/libxml/parser.h:24:
/usr/include/libxml2/libxml/xmlerror.h:1005:57: note: expected ‘xmlStructuredErrorFunc’ {aka ‘void (*)(void *, const struct _xmlError *)’} but argument is of type ‘void (*)(void *, xmlError *)’ {aka ‘void (*)(void *, struct _xmlError *)’}
1005 | xmlStructuredErrorFunc handler);
| ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~
/www/server/php/74/src/ext/libxml/libxml.c: In function ‘zif_libxml_get_last_error’:
/www/server/php/74/src/ext/libxml/libxml.c:1066:15: warning: assignment discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
1066 | error = xmlGetLastError();
| ^
/www/server/php/74/src/ext/libxml/libxml.c: At top level:
/www/server/php/74/src/ext/libxml/libxml.c:387:12: warning: ‘php_libxml_streams_IO_write’ defined but not used [-Wunused-function]
387 | static int php_libxml_streams_IO_write(void *context, const char *buffer, int len)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
/www/server/php/74/src/ext/libxml/libxml.c:377:14: warning: ‘php_libxml_streams_IO_open_write_wrapper’ defined but not used [-Wunused-function]
377 | static void *php_libxml_streams_IO_open_write_wrapper(const char *filename)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
make: *** [Makefile:710: ext/libxml/libxml.lo] Error 1
========================================================
Ubuntu 26.04 LTS
\l
Bit:64 Mem:23513M Core:10 gcc:15.2.0 cmake:4.2.3
Linux 7.0.0-22-generic x86_64
ERROR: php-7.4.33 install failed.
安装失败，请截图以上报错信息发帖至论坛www.bt.cn/bbs求助
cat: /etc/redhat-release: No such file or directory
|-Successify --- 命令已执行! ---

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