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Home Backend Development PHP Tutorial 难题:文章内容在MYSQL某字段中,用PHP读取内容,如何将里面的数字,以图片内容输出!

难题:文章内容在MYSQL某字段中,用PHP读取内容,如何将里面的数字,以图片内容输出!

Jun 23, 2016 pm 02:01 PM

PHP+MYSQL问题:
文章内容放在了MYSQL某字段中,为了防止复制采集,打算把内容里的“阿拉伯”数字,输出为图片格式,我的思路是:用PHP先读取文章内容,然后判断里面的数字,凡是数字的,就显示为图片!效果如图:


问题难点:一篇文章中的数字不止一处,有的达到上百处,而且有的数字是带小数点的,如12.3,这么多的数字,如何输出?

提示:文章是介绍市场行情的,所有数字后面都有一个汉字“元”,如15.6元,14-17元,48元等。

能否通过判断,将“元”前面的若干字符转化为图片输出??

我的分不多了,一共才25分,全给了!


回复讨论(解决方案)

正则替换一下就是了
能处理一个就能处理十个、百个、千个

正则替换一下就是了
能处理一个就能处理十个、百个、千个

本人只懂基础的编程,正则属于高级应用了,弄不了呀!


正则替换一下就是了
能处理一个就能处理十个、百个、千个

本人只懂基础的编程,正则属于高级应用了,弄不了呀!

请求高手指点迷津!!

$con = <<<context广西售价14-17.5元广东零售价23.5元四川零售价13元内蒙零售价0.14元context;$rep = preg_replace('/([\d\.-]+)元/i', '$', $con);var_dump($rep);
Copy after login
Copy after login
Copy after login

$con = <<<context广西售价14-17.5元广东零售价23.5元四川零售价13元内蒙零售价0.14元context;$rep = preg_replace('/([\d\.-]+)元/i', '$', $con);var_dump($rep);
Copy after login
Copy after login
Copy after login

先调试一下再说!


$con = <<<context广西售价14-17.5元广东零售价23.5元四川零售价13元内蒙零售价0.14元context;$rep = preg_replace('/([\d\.-]+)元/i', '$', $con);var_dump($rep);
Copy after login
Copy after login
Copy after login

先调试一下再说!

还是弄不来,我水平太差,初学者。
能看懂上面大致意思,preg_replace 执行查找,但后面如何将数字输出图片呀?如何用图片替换掉文章中的数字呀?

求高手解答!

你在 image 目录中保存一系列数字图片 0.gif、1.gif....
然后
$text = preg_replace('/\d/', '难题:文章内容在MYSQL某字段中,用PHP读取内容,如何将里面的数字,以图片内容输出!', $text);

你在 image 目录中保存一系列数字图片 0.gif、1.gif....
然后
$text = preg_replace('/\d/', '难题:文章内容在MYSQL某字段中,用PHP读取内容,如何将里面的数字,以图片内容输出!', $text);

马上调试!!

综合两位大侠的语句,调试结果500错误

<?php$con = <<<context      吴茱萸:货源减少,价格依然较高,目前市场上有批量商品成交,中花品种售价为43-52元,小花、大花品种为37-42元。     栀子:走动较快,现红统价为28-32元。     荆芥:野生品减少,家种品不足,近日走动偏畅,统货价格现为6-7.5元。     香薷草:近年种少,市上商品不多见,本期有零星走动,统货售价为7-11元。     穿心莲:用多,走动较快,批量成交价为7-8元。鱼腥草库存较足,零星走快,价格平稳,统货现为6-8元。     金银花:市货充足,商品有零星走动,价格平稳,目前地产统货售价为45-60元。     红花:有少量成交,价格现为95-97元。杭白菊走少,饼统价为90-110元。百合花走动不多,价格稳定在42-45元。     辛夷花:走动一般,价格趋稳,大花为30-32元,小花为35-37元。     地龙:有小批量货源入市,商品成交以零星为主,广地龙大开为160-175元,中开为95-115元。     蜂房:走动较少,软货市价稳定为250-300元。     水蛭:货源不多,走动也不快,价格趋稳,现清水品为800-900元。     蜈蚣:新品即将上市,走动减慢,现大条2.5-2.7元,中条2.2-2.4元,小条0.9-1.1元。     蛇蜕:市货偏少,价格平稳在100-115元。     党参:交易量减少,价格稳定,目前纹党价为70-85元,白条为45-60元。     玄参:种植面积减少,近来市货不足,走势转畅,现统货价为12-14元。     太子参:货源较足,小批量走动,价格平稳在45-60元。context; $con = preg_replace('/([\d\.-]+)元/i', '<img  src="/static/imghw/default1.png"  data-src="image/$0.gif"  class="lazy"   alt="难题:文章内容在MYSQL某字段中,用PHP读取内容,如何将里面的数字,以图片内容输出!" >', $con);var_dump($con);?>
Copy after login


不知上面那里错了,请指教!!!

这样改,也错误

<?php$con = <<<context      吴茱萸:货源减少,价格依然较高,目前市场上有批量商品成交,中花品种售价为43-52元,小花、大花品种为37-42元。     栀子:走动较快,现红统价为28-32元。     荆芥:野生品减少,家种品不足,近日走动偏畅,统货价格现为6-7.5元。     香薷草:近年种少,市上商品不多见,本期有零星走动,统货售价为7-11元。     穿心莲:用多,走动较快,批量成交价为7-8元。鱼腥草库存较足,零星走快,价格平稳,统货现为6-8元。     金银花:市货充足,商品有零星走动,价格平稳,目前地产统货售价为45-60元。     红花:有少量成交,价格现为95-97元。杭白菊走少,饼统价为90-110元。百合花走动不多,价格稳定在42-45元。     辛夷花:走动一般,价格趋稳,大花为30-32元,小花为35-37元。     地龙:有小批量货源入市,商品成交以零星为主,广地龙大开为160-175元,中开为95-115元。     蜂房:走动较少,软货市价稳定为250-300元。     水蛭:货源不多,走动也不快,价格趋稳,现清水品为800-900元。     蜈蚣:新品即将上市,走动减慢,现大条2.5-2.7元,中条2.2-2.4元,小条0.9-1.1元。     蛇蜕:市货偏少,价格平稳在100-115元。     党参:交易量减少,价格稳定,目前纹党价为70-85元,白条为45-60元。     玄参:种植面积减少,近来市货不足,走势转畅,现统货价为12-14元。     太子参:货源较足,小批量走动,价格平稳在45-60元。context; $con = preg_replace('/\d/', '<img  src="/static/imghw/default1.png"  data-src="image/$0.gif"  class="lazy"   alt="难题:文章内容在MYSQL某字段中,用PHP读取内容,如何将里面的数字,以图片内容输出!" >', $con);var_dump($con);?>
Copy after login

多了非法字符
报500错,是因为你没打开错误显示功能

$con = <<<context     吴茱萸:货源减少,价格依然较高,目前市场上有批量商品成交,中花品种售价为43-52元,小花、大花品种为37-42元。     栀子:走动较快,现红统价为28-32元。     荆芥:野生品减少,家种品不足,近日走动偏畅,统货价格现为6-7.5元。     香薷草:近年种少,市上商品不多见,本期有零星走动,统货售价为7-11元。     穿心莲:用多,走动较快,批量成交价为7-8元。鱼腥草库存较足,零星走快,价格平稳,统货现为6-8元。     金银花:市货充足,商品有零星走动,价格平稳,目前地产统货售价为45-60元。     红花:有少量成交,价格现为95-97元。杭白菊走少,饼统价为90-110元。百合花走动不多,价格稳定在42-45元。     辛夷花:走动一般,价格趋稳,大花为30-32元,小花为35-37元。     地龙:有小批量货源入市,商品成交以零星为主,广地龙大开为160-175元,中开为95-115元。     蜂房:走动较少,软货市价稳定为250-300元。     水蛭:货源不多,走动也不快,价格趋稳,现清水品为800-900元。     蜈蚣:新品即将上市,走动减慢,现大条2.5-2.7元,中条2.2-2.4元,小条0.9-1.1元。     蛇蜕:市货偏少,价格平稳在100-115元。     党参:交易量减少,价格稳定,目前纹党价为70-85元,白条为45-60元。     玄参:种植面积减少,近来市货不足,走势转畅,现统货价为12-14元。     太子参:货源较足,小批量走动,价格平稳在45-60元。context;$con = preg_replace('/\d/', '<img  src="/static/imghw/default1.png"  data-src="image/$0.gif"  class="lazy"   alt="难题:文章内容在MYSQL某字段中,用PHP读取内容,如何将里面的数字,以图片内容输出!" >', $con);var_dump($con);
Copy after login
Copy after login

多了非法字符
报500错,是因为你没打开错误显示功能

$con = <<<context     吴茱萸:货源减少,价格依然较高,目前市场上有批量商品成交,中花品种售价为43-52元,小花、大花品种为37-42元。     栀子:走动较快,现红统价为28-32元。     荆芥:野生品减少,家种品不足,近日走动偏畅,统货价格现为6-7.5元。     香薷草:近年种少,市上商品不多见,本期有零星走动,统货售价为7-11元。     穿心莲:用多,走动较快,批量成交价为7-8元。鱼腥草库存较足,零星走快,价格平稳,统货现为6-8元。     金银花:市货充足,商品有零星走动,价格平稳,目前地产统货售价为45-60元。     红花:有少量成交,价格现为95-97元。杭白菊走少,饼统价为90-110元。百合花走动不多,价格稳定在42-45元。     辛夷花:走动一般,价格趋稳,大花为30-32元,小花为35-37元。     地龙:有小批量货源入市,商品成交以零星为主,广地龙大开为160-175元,中开为95-115元。     蜂房:走动较少,软货市价稳定为250-300元。     水蛭:货源不多,走动也不快,价格趋稳,现清水品为800-900元。     蜈蚣:新品即将上市,走动减慢,现大条2.5-2.7元,中条2.2-2.4元,小条0.9-1.1元。     蛇蜕:市货偏少,价格平稳在100-115元。     党参:交易量减少,价格稳定,目前纹党价为70-85元,白条为45-60元。     玄参:种植面积减少,近来市货不足,走势转畅,现统货价为12-14元。     太子参:货源较足,小批量走动,价格平稳在45-60元。context;$con = preg_replace('/\d/', '<img  src="/static/imghw/default1.png"  data-src="image/$0.gif"  class="lazy"   alt="难题:文章内容在MYSQL某字段中,用PHP读取内容,如何将里面的数字,以图片内容输出!" >', $con);var_dump($con);
Copy after login
Copy after login


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