PHP Fatal error: Call to undefined function bcmul()

此函数在php.ini中的选项:复制代码 代码如下:[bcmath]; Number of decimal digits for all bcmath functions.; http://www.php.net/manual/en/bc.configuration.php#ini.bcmath.scalebcmath.scale = 0

使用如下命令:

就需要使用yum update 之后再yum install php53-bcmath就好了

此函数在php.ini中的选项:

复制代码 代码如下:Loaded plugins: fastestmirrorLoading mirror speeds from cached hostfile* base: mirrors.yun-idc.com* extras: mirrors.yun-idc.com* rpmforge: ftp.riken.jp* updates: mirrors.yun-idc.comSetting up Install ProcessResolving Dependencies--> Running transaction check---> Package php-bcmath.x86_64 0:5.1.6-40.el5_9 set to be updated--> Processing Dependency: php-common = 5.1.6-40.el5_9 for package: php-bcmath--> Running transaction check---> Package php-common.x86_64 0:5.1.6-40.el5_9 set to be updated--> Processing Conflict: php53-common conflicts php-common--> Finished Dependency Resolutionphp53-common-5.3.3-13.el5_9.1.x86_64 from installed has depsolving problems--> php53-common conflicts with php-commonError: php53-common conflicts with php-commonYou could try using --skip-broken to work around the problemYou could try running: package-cleanup --problemspackage-cleanup --dupesrpm -Va --nofiles --nodigest

<?php
echo bcmul('1.34747474747', '35', 3); // 47.161
echo bcmul('2', '4'); // 8
?>

PHP环境:PHP版本为5.3.3系统为Red Hat 4.1.2-54查看apache的错误日志,发现是加密文件中一个函数bcmul()报错:复制代码 代码如下:PHP Fatal error: Call to undefined function bcmul() in /php_rsa.php on line xxx

Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile  * base: mirrors.yun-idc.com  * extras: mirrors.yun-idc.com  * rpmforge: ftp.riken.jp  * updates: mirrors.yun-idc.com Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package php-bcmath.x86_64 0:5.1.6-40.el5_9 set to be updated --> Processing Dependency: php-common = 5.1.6-40.el5_9 for package: php-bcmath --> Running transaction check ---> Package php-common.x86_64 0:5.1.6-40.el5_9 set to be updated --> Processing Conflict: php53-common conflicts php-common --> Finished Dependency Resolution php53-common-5.3.3-13.el5_9.1.x86_64 from installed has depsolving problems   --> php53-common conflicts with php-common Error: php53-common conflicts with php-common  You could try using --skip-broken to work around the problem  You could try running: package-cleanup --problems                         package-cleanup --dupes                         rpm -Va --nofiles --nodigest
就需要使用yum update 之后再yum install php53-bcmath就好了

在一台处理网络支付的服务器迁移的时候,发现不能支付。

解决:

顺便了解了一下,bcmath这个函数是PHP数学扩展中的一个。可以使用 bcscale() 来设置全局默认的小数位数,具体用法如下:复制代码 代码如下:string bcmul ( string $left_operand , string $right_operand [, int $scale ] )例子:复制代码 代码如下:

yum install php-bcmath

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