PHP - Returning the last line in a file?(PHP - 返回文件中的最后一行?)

Weak typing in PHP: why use isset at all?(PHP 中的弱类型:为什么要使用 isset?)

default as first option in switch statement?(默认为 switch 语句中的第一个选项?)

Can one rely on Paypal IPN solely to record purchases?(可以仅依靠 Paypal IPN 来记录购买吗?)

Paypal Sandbox API Internal Error(Paypal Sandbox API 内部错误)

Paypal IPN not calling Issue(Paypal IPN 未调用问题)

Paypal Express - Add Discount(Paypal Express - 添加折扣)

PayPal API with Laravel - Updating of data(带有 Laravel 的 PayPal API - 数据更新)

PayPal Integration, how would I define the receiver account?(PayPal 集成，我将如何定义接收方帐户?)

PayPal API: How to get Sale ID and refund payment made via PayPal?(PayPal API:如何通过 PayPal 获取销售 ID 和退款?)

Paypal IPN Issue with parallel payment(Paypal IPN 并行支付问题)

Paypal express checkout error Order total is missing. Error 10400(Paypal 快速结账错误订单总数丢失.错误 10400)

How can get transaction details from paypal after successful payment(支付成功后如何从paypal获取交易明细)

Paypal button + IPN (pass payer username)(Paypal 按钮 + IPN(通过付款人用户名))

Paypal payments pro and pci compliance(Paypal 支付 pro 和 pci 合规性)

Setting up Payum Bundle with Symfony2 giving error(使用 Symfony2 设置 Payum Bundle 出现错误)

Paypal Direct pay not working(贝宝直接付款不起作用)

Paypal Sandbox recurring payment with initial amount pending(Paypal Sandbox 定期付款，初始金额待定)

Paypal Sandbox Testing - Change of URL Endpoint?(Paypal 沙盒测试 - 更改 URL 端点?)

Paypal transfer money from one account to another(Paypal 将钱从一个帐户转移到另一个帐户)