PHP网址处理-urlencode不起作用-搅拌网址-特殊字符处理

Question

String  = "KOA Axial Carbon Film Resistor 3.3k? ±5% 0.25W -450 ? +350ppm/°C"

编码后出现错误链接

http://www.api.simplyduty.com/api/Classification/get-hscode?APIKey=A36AFAA1-A570-4279-84CC-ECE4B9EB76F6&fullDescription=KOA+Axial+Carbon+Film+Resistor+3.3k%CE%A9+%C2%B15%25+0.25W+-450+%E2%86%92+%2B350ppm%2F%C2%B0C&originCountry=AM&destinationCountry=AW

但是我想要这种类型的转换，因为浏览器会进行转换

http://www.api.simplyduty.com/api/Classification/get-hscode?APIKey=A36AFAA1-A570-4279-84CC-ECE4B9EB76F6&fullDescription=KOA%20Axial%20Carbon%20Film%20Resistor%203.3k?%20%C2%B15%%200.25W%20-450%20?%20+350ppm/%C2%B0C&originCountry=AM&destinationCountry=AW

正确的字符串我怎么能得到这个

"KOA%20Axial%20Carbon%20Film%20Resistor%203.3k?%20%C2%B15%%200.25W%20-450%20?%20+350ppm/%C2%B0C"

Answer 1

您可以看一下http://php.net/rawurlencode

php -r "echo rawurlencode('KOA Axial Carbon Film Resistor 3.3k? ±5% 0.25W -450 ? +350ppm/°C');"
KOA%20Axial%20Carbon%20Film%20Resistor%203.3k%3F%20%C2%B15%25%200.25W%20-450%20%3F%20%2B350ppm%2F%C2%B0C

警告，您预期的“正确”字符串会忘记编码4个字符：/％？ +

斜杠由“％2F”编码，“％”由“％25”编码，“？” 由“％3F”编码，“ +”由“％2B”编码

因此，您可以像这样获取所需的字符串：

php -r "echo str_replace(['%2F', '%25', '%3F', '%2B'], ['/', '%', '?', '+'],  rawurlencode('KOA Axial Carbon Film Resistor 3.3k? ±5% 0.25W -450 ? +350ppm/°C'));"
KOA%20Axial%20Carbon%20Film%20Resistor%203.3k?%20%C2%B15%%200.25W%20-450%20?%20+350ppm/%C2%B0C